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2 カブモザイクウイルス (TuMV) ゲノム由来の遺伝子を導入した Nicotiana benthamiana における TuMV 抵抗性 CP Rp MP CP Rp MP protein-mediated resistance PMR RNA RNA mediated resistancerm

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(1)2012 神奈川県農業技術センター研究報告 第 155 号 2012 ␹ᄹᎹ⋵ㄘᬺᛛⴚ࠮ࡦ࠲࡯⎇ⓥႎ๔ ╙ 155 ภ. . ࠞࡉࡕࠩࠗࠢ࠙ࠗ࡞ࠬ㧔 ࠞࡉࡕࠩࠗࠢ࠙ࠗ࡞ࠬ㧔6W/8㧕 6W/8㧕ࠥࡁࡓ↱᧪ ࠥࡁࡓ↱᧪ߩ ↱᧪ߩㆮવሶࠍ ㆮવሶࠍዉ౉ߒߚ ዉ౉ߒߚ 0KEQVKCPC. DGPVJCOKCPC ߦ߅ߌࠆ 6W/8 ᛶ᛫ᕈ ᛶ᛫ᕈ . ㊁᧛⎇࡮ᬀ⨲⑲ᢅ࡮ർቱ⵨ 1) . Turnip mosaic virus 㧔TuMV㧕 㧕 resistance of transgenic Nicotiana benthamiana plants containing transgenes derived from TuMV genome . Ken NOMURA, Hidetoshi UEKUSA and Nobuhiro KITA1) . ៰  ⷐ  ࠞࡉࡕࠩࠗࠢ࠙ࠗ࡞ࠬ㧔TuMV㧕ߩࠦ࡯࠻࠲ࡦࡄࠢ⾰㧔CP㧕ㆮવሶ㧘NIb ㆮવሶ෸߮ VPg ㆮવሶࠍᬀ‛ߦዉ౉ ߒ㧘ᛶ᛫ᕈ࡟ࡌ࡞߿ᛶ᛫ᕈ୘૕ߩ₪ᓧല₸ߥߤࠍᲧセߔࠆ⋡⊛ߢ㧘TuMV-JO ߩ CP ో㐳ㆮવሶ 864 bp㧔CP㧕෸߮ 3’ᧃ┵஥ 430 bp㧔CP3’㧕㧘NIb ㆮવሶߩ 3’ᧃ┵஥ 820 bp㧔NIb3’㧕㧘VPg ో㐳ㆮવሶ 575 bp㧔VPg㧕ࠍߘࠇߙࠇ Nicotiana benthamiana ߦዉ౉ߒ㧘ᓧࠄࠇߚᒻ⾰ォ឵ T1 ෸߮ T2 ♽⛔ߩ TuMV ᛶ᛫ᕈߦߟ޿ߡ⺞ߴߚ㧚ߘߩ⚿ᨐ㧘T1 ਎ઍߩ ♽⛔ߢߪ‫ߩࠇߕ޿ޔ‬ㆮવሶࠍዉ౉ߒߚ႐วߢ߽ TuMV ធ⒳ᓟߦ߹ߞߚߊ∛ᓽ߇⹺߼ࠄࠇߥ޿㜞ᐲᛶ᛫ᕈࠍ␜ߔ୘ ૕߿㧘TuMV ࠍធ⒳ᓟߩ⋥਄⪲ߦߪ∛ᓽ߇⹺߼ࠄࠇࠆ߇㧘ߘߩᓟዷ㐿ߒߡߊࠆ⪲ߦߪ∛ᓽ߇⹺߼ࠄࠇߥ޿࿁ᓳဳ ᛶ᛫ᕈࠍ␜ߔ୘૕߇⏕⹺ߐࠇߚ㧚ዉ౉ㆮવሶߩ㆑޿ߦࠃࠆᛶ᛫ᕈ࡟ࡌ࡞ߦᏅߪ⹺߼ࠄࠇߥ߆ߞߚ㧚T1 ਎ઍߢ㜞ᐲ ᛶ᛫ᕈࠍ␜ߔ୘૕߇ඨᢙએ਄ࠍභ߼ߚ♽⛔ߪ㧘CP ෸߮ NIb3’ߢߪ 7 ♽⛔㧘VPg ߢߪ 3 ♽⛔㧘CP3’ߢߪ 2 ♽⛔ߢ޽ ࠅ‫⥄ߩࠄࠇߎޔ‬ᱺ T2 ਎ઍߪߔߴߡ㜞ᐲᛶ᛫ᕈࠍ␜ߒߚ㧚ࡁ࡯ࠩࡦࡉࡠ࠶࠻⸃ᨆߢߪ㧘ᛶ᛫ᕈࠍ␜ߔ♽⛔ߪ޿ߕࠇ ߽ዉ౉ㆮવሶߩᬌ಴࡟ࡌ࡞߇ૐߊ㧘CP ㆮવሶࠍዉ౉ߒߚᒻ⾰ォ឵૕ߩ TuMV ᛶ᛫ᕈᬀ‛߆ࠄߪዉ౉ㆮવሶ↱᧪ ߩ siRNA ߇ᬌ಴ߐࠇߚߎߣ߆ࠄ㧘ᒻ⾰ォ឵૕ߩ TuMV ᛶ᛫ᕈߪዉ౉ㆮવሶߩ RNA ࠨࠗ࡟ࡦࠪࡦࠣߦࠃࠆߎߣ߇ ␜ໂߐࠇߚ㧚  ࠠ࡯ࡢ࡯࠼㧦TuMV, ࠙ࠗ࡞ࠬᛶ᛫ᕈ, ᒻ⾰ォ឵, RNA ࠨࠗ࡟ࡦࠪࡦࠣ . Summary 6TCPUIGPKE0KEQVKCPCDGPVJCOKCPCRNCPVUEQPVCKPKPIVTCPUIGPGUFGTKXGFHTQOHWNNNGPIVJEQCVRTQVGKP %2 IGPG. DR ̉TGIKQPQHVJG%2IGPG DR ̉TGIKQPQH0+DIGPG DR CPFHWNNNGPIVJ82IIGPG DR QH6WTPKR. OQUCKEXKTWU 6W/8 IGPQOGYGTGCPCN[\GFHQTVJGKTTGUKUVCPEGVQ6W/8%QORNGVGCPFTGEQXGT[V[RGUQHTGUKUVCPV RNCPVUYGTGQDVCKPGFHTQOCNNVJGVTCPUIGPKE6RNCPVUTGICTFNGUUQHVJGKPVTQFWEGFVTCPUIGPGU6JGNGXGNQHVJG 6W/8TGUKUVCPEGFKFPQVFKHHGTCOQPIVJG6W/8TGUKUVCPVNKPGUQHVJG6IGPGTCVKQP0WODGTQH6W/8TGUKUVCPV6 IGPGTCVKQPUVJCVUJQYGFEQORNGVG6W/8TGUKUVCPEGKP6IGPGTCVKQPYGTGCPFNKPGUYKVJ%2QT0+D̉82ICPF %2̉VTCPUIGPGUTGURGEVKXGN[CNNQHYJKEJ6IGPGTCVKQPUYGTGEQORNGVGN[TGUKUVCPVVQ6W/80QTVJGTPDNQVCPCN[UKU QHVJGUG6W/8TGUKUVCPV6IGPGTCVKQPUTGXGCNGFVJCVVJGUVGCF[UVCVGNGXGNUQHVTCPUIGPGGZRTGUUKQPYCUSWKVGNQY YJGTGCUFKUVKPEVUOCNNKPVGTHGTKPI40#UFGTKXGFHTQOVJGRQUVVTCPUETKRVKQPCNN[FKIGUVGFVTCPUIGPGVTCPUETKRVUYGTG FGVGEVGFUWIIGUVKPIVJCVVJGTGUKUVCPEGKUCVVTKDWVGFVQVJG40#UKNGPEKPIQHVJGVTCPUIGPGU. Key words: TuMV, virus resistance, transgenic, RNA silencing. 1). ⃻␹ᄹᎹ⋵ⅣႺㄘ᡽ዪㄘ᡽ㇱㄘᬺᝄ⥝⺖.

(2) . カブモザイクウイルス(TuMV)ゲノム由来の遺伝子を導入した Nicotiana benthamiana における TuMV 抵抗性 ࠞࡉࡕࠩࠗࠢ࠙ࠗ࡞ࠬ㧔6W/8㧕ࠥࡁࡓ↱᧪ߩㆮવሶࠍዉ౉ߒߚ 0KEQVKCPCDGPVJCOKCPC ߦ߅ߌࠆ 6W/8 ᛶ᛫ᕈ. ✜  ⸒ ᬀ‛࠙ࠗ࡞ࠬߩㆮવሶߪ৻⥸ߦ㧘☸ሶࠍ᭴ᚑߔࠆᄖ. ࡄࡄࠗࡗߥߤ৻ㇱߩ૞‛ߢߪߔߢߦታ↪೑↪ߐࠇߡ޿ ࠆ㧔Prins et al 2008, Fuchs and Gonsalves 2008㧕㧚. ⵍ࠲ࡦࡄࠢ⾰㧔CP㧕ㆮવሶ߿ㆮવሶߩⶄ⵾ߦ㑐ਈߔࠆ. Potyvirus ߦዻߔࠆࠞࡉࡕࠩࠗࠢ࠙ࠗ࡞ࠬ㧔TuMV㧕. ⶄ⵾㉂⚛㧔Rp㧕ㆮવሶߩઁ㧘࠙ࠗ࡞ࠬߩ⚦⢩㑆߹ߚߪ. ߪ㧘ࠞࡉ㧘࠳ࠗࠦࡦ߿⩿⒳ߥߤߩࠕࡉ࡜࠽⑼૞‛ߦᗵ. 㐳〒㔌⒖ⴕߦ㑐ਈߔࠆ⒖ⴕ࠲ࡦࡄࠢ⾰㧔MP㧕ߥߤࠍࠦ. ᨴߒ‫߿⁁∝ࠢࠗࠩࡕߦ⪲ޔ‬ᩣో૕ࠍ⪜❗ߐߖࠆߥߤߩ. ࡯࠼ߒߡ޿ࠆ㧚ߎࠇࠄߩㆮવሶࠍᬀ‛ߦዉ౉ߔࠆߎߣ. ∛ᓽࠍᒁ߈⿠ߎߔ㧔Tomlinson 1987㧕㧚ࠊࠇࠊࠇߪߎࠇ. ߢ࠙ࠗ࡞ࠬᛶ᛫ᕈࠍઃਈߢ߈ࠆߎߣ߇⍮ࠄࠇߡ߅ࠅ㧘. ߹ߢߦ TuMV ߩ CP ㆮવሶࠍዉ౉ߒߚࠪࡠࠗ࠿࠽࠭࠽. ᛶ᛫ᕈᬀ‛ࠍᓧࠆߚ߼ߩㆮવሶߣߒߡߪ CP ߩઁ㧘Rp. 㧔Arabidopsis thaliana㧕ߦ߅ߌࠆ TuMV ᛶ᛫ᕈߦߟ޿. ߿ MP ࠍࠦ࡯࠼ߔࠆㆮવሶ㧘෸߮ߎࠇࠄߩࠕࡦ࠴࠮ࡦ. ߡ⸃ᨆߒߡ߈ߚ 㧔Nomura et al 2004㧕㧚ߒ߆ߒ㧘TuMV. ࠬㆮવሶߥߤ߇޽ࠆ㧚߹ߚ㧘ߎߩࠃ߁ߥᒻ⾰ォ឵ᬀ‛. ߇ࠦ࡯࠼ߔࠆฦ⒳ࠥࡁࡓㆮવሶࠍᬀ‛ߦዉ౉ߒ㧘ዉ౉. ߦ߅ߌࠆᛶ᛫ᕈߩᯏ᭴ߪ㧘ዉ౉ㆮવሶ߆ࠄ⠡⸶ߐࠇߚ. ㆮવሶߩ⒳㘃ߦࠃࠆᛶ᛫ᕈ࡟ࡌ࡞߿ᛶ᛫ᕈ୘૕ࠍ₪ᓧ. ࠲ ࡦ ࡄ ࠢ ⾰ ߇ 㑐 ਈ ߔ ࠆ protein-mediated resistance. ߔࠆߚ߼ߩല₸ࠍ⋧ኻ⊛ߦᲧセߒߚ⎇ⓥ੐଀ߪߥ޿㧚. 㧔PMR㧕ߣ㧘ォ౮ߐࠇߚ RNA ߇㑐ਈߔࠆ RNA mediated. ᬀ‛߆ࠄߩ᦭↪ㆮવሶߩන㔌߿㧘ㆮવሶߩᯏ⢻ࠍ⺞. resistance㧔RMR㧕ߦᄢ೎ߐࠇߡ߈ߚ㧔Lomonossoff 1995㧕㧚. ߴߡታ↪૞‛ߦᔕ↪ߔࠆߚ߼ߦࠪࡠࠗ࠿࠽࠭࠽߿࠲ࡃ. ࠲ࡃࠦࡕࠩࠗࠢ࠙ࠗ࡞ࠬ㧔TMV㧕ߩ႐ว㧘Rp ߢ޽ࠆ. ࠦߥߤߩࡕ࠺࡞ᬀ‛߇೑↪ߐࠇߡ޿ࠆ㧚ਛߢ߽࠲ࡃࠦ. 54K ࠲ࡦࡄࠢ⾰ㆮવሶࠍዉ౉ߒߚ࠲ࡃࠦߩᛶ᛫ᕈߦߪ. ߩㄭ✼⒳ߢ޽ࠆ Nicotiana benthamiana ߪ TMV ߿ CMV㧘. ⠡⸶↥‛߇ᔅⷐߢ޽ࠅ㧘54K ߩ⚂ 20 %ߒ߆⠡⸶ߐࠇߥ. PVY ߥߤᄙߊߩ࠙ࠗ࡞ࠬߦᗵฃᕈ߇㜞ߊ㧘TuMV ߦᗵ. ޿ㆮવሶࠍዉ౉ߒߚ࠲ࡃࠦߢߪᛶ᛫ᕈࠍ␜ߐߥ޿ߎߣ. ᨴߒߚ㓙߽ᭂ߼ߡỗߒ޿∛ᓽࠍ␜ߔ㧚߹ߚ㧘ᬀ‛૕ߩ. ߆ࠄ㧘ߘߩࡔࠞ࠾࠭ࡓߪ PMR ߣ⠨߃ࠄࠇߚ㧔Carr et al. ਛ⒟ᐲߩᄢ߈ߐߢ޽ࠆߚ߼ࠨࡦࡊ࡝ࡦࠣߒ߿ߔ޿ߛߌ. 1992 㧕㧚 ߹ ߚ 㧘 ࠕ ࡞ ࡈ ࠔ ࡞ ࡈ ࠔ ࡕ ࠩ ࠗ ࠢ ࠙ ࠗ ࡞ ࠬ. ߢߥߊធ߉ᧁ߽น⢻ߢ㧘࡝࡯ࡈ࠺ࠖࠬࠢᴺߦࠃࠆᒻ⾰. 㧔AIMV㧕ߩ Rp ዉ౉ᬀ‛ߢ߽ᛶ᛫ᕈߦߪ⠡⸶↥‛߇ᔅ. ォ឵ᴺ߽⏕┙ߐࠇߡ޿ࠆߎߣ߆ࠄ㧘࠙ࠗ࡞ࠬᛶ᛫ᕈߩ. ⷐߣߐࠇߡ޿ࠆ㧔Palukaitis et al 1997㧕㧚TMV ߩ MP ߢ. ⎇ⓥߦᐢߊ↪޿ࠄࠇߡ޿ࠆ㧚ߘߎߢᧄ⎇ⓥߢߪ㧘TuMV. ޽ࠆ 30K ࠲ࡦࡄࠢ⾰޽ࠆ޿ߪࠪࡠࠢࡠ࡯ࡃࡕࠩࠗࠢ࠙. ߩో㐳 CP ㆮવሶߩઁ㧘CP ㆮવሶߩ 3’ᧃ┵஥ㇱಽႮၮ. ࠗ࡞ࠬ㧔WCIMV㧕ߩ MP ߩ৻ߟߢ޽ࠆ 13K ࠲ࡦࡄࠢ. ㈩೉㧘NIb ㆮવሶߩ 3’ᧃ┵஥Ⴎၮ㈩೉෸߮ో㐳 VPg ㆮ. ⾰ߦᄌ⇣ࠍᣉߒߚ cDNA ࠍ࠲ࡃࠦߦዉ౉ߒߚߣߎࠈ㧘. વሶࠍዉ౉ߢ߈ࠆࠦࡦࠬ࠻࡜ࠢ࠻ࠍ᭴▽ߒ㧘. ⶄᢙ⒳ߩ࠙ࠗ࡞ࠬߦኻߔࠆᛶ᛫ᕈ߇ઃਈߐࠇߡ޿ࠆ. N.benthamiana ߦዉ౉ߒߡᛶ᛫ᕈ࡟ࡌ࡞߿ᛶ᛫ᕈ୘૕. 㧔Cooper et al 1995, Beck et al 1994㧕㧚৻ᣇ㧘CMV ߩ Rp. ߩ₪ᓧല₸╬ߦߟ޿ߡᲧセߒߚ㧚. ㆮવሶዉ౉ᬀ‛ߩᛶ᛫ᕈ߿㧘ࠨࠨࠥࡕࠩࠗࠢ࠙ࠗ࡞ࠬ. . 㧔CPMV㧕ߩ MP ㆮવሶዉ౉ᬀ‛ߦ߅ߌࠆᛶ᛫ᕈߪ㧘 RMR ߦࠃࠆߎߣ߇ႎ๔ߐࠇߡ޿ࠆ㧔Sijen et al 1996㧕㧚. ᧚ᢱ෸ ᧚ᢱ෸߮ᣇᴺ ᣇᴺ 㧝㧚 TuMV ㆮવሶߩ ㆮવሶߩࠢࡠ࡯࠾ࡦࠣ. Potyvirus ߩㆮવሶࠍዉ౉ߒߚᒻ⾰ォ឵ᬀ‛ߦߪ㧘ࠫ.  TuMV ߩ CP ㆮવሶ㧘NIb ㆮવሶ෸߮ VPg ㆮવሶߩ. ࡖࠟࠗࡕ Y ࠙ࠗ࡞ࠬ㧔PVY㧕߿ࠛࡦ࠼࠙⒳ሶવᨴࡕࠩ. ฦ⒳㗔ၞࠍᬀ‛ߦዉ౉ߒ㧘ᛶ᛫ᕈ࡟ࡌ࡞╬ࠍᲧセᬌ⸛. ࠗࠢ࠙ࠗ࡞ࠬ㧔PSbMV㧕ߩ NIb ㆮવሶࠍዉ౉ߒߚ࠲ࡃ. ߔ ࠆ ⋡ ⊛ ߢ 㧘 TuMV-JO ߩ CP ో 㐳 ㆮ વ ሶ 864 bp. ࠦ߿ࠛࡦ࠼࠙㧔Audy et al 1994, Jones et al 1998㧕㧘࠲ࡃ. 㧔Nomura et al 2004㧕 ߩઁ㧘CP ߩ 3’ᧃ┵஥ 430 bp㧔એ. ࠦࠛ࠶࠴࠙ࠗ࡞ࠬ㧔TEV㧕ߩ VPg ㆮવሶࠍዉ౉ߒߚ࠲. ਅ CP3’㧕㧘NIb ㆮવሶߩ 3’ᧃ┵஥ 820 bp㧔એਅ NIb3’㧕㧘. ࡃࠦ㧔Swaney et al 1995㧕╬߇޽ࠅ㧘ߎࠇࠄߩᒻ⾰ォ឵. VPg ㆮવሶో㐳 575 bp㧔એਅ VPg㧕 ࠍ RT-PCR ߦࠃࠅ. ᬀ‛ߦ߅ߌࠆ࠙ࠗ࡞ࠬᛶ᛫ᕈᯏ᭴ߪ RMR ߢ޽ࠆߣߐ. ࠢࡠ࡯࠾ࡦࠣߒߚ㧚PCR ߦ↪޿ߚࡊ࡜ࠗࡑ࡯ߪ㧘CP3’. ࠇߡ޿ࠆ㧚ߎߩࠃ߁ߦᄙߊߩ࠙ࠗ࡞ࠬߣᬀ‛ߩ⚵ߺว. ߦߟ޿ߡߪ CPF-2 㧔GGATCCTGGAATTCCCGATCAA. ࠊߖߢ࠙ࠗ࡞ࠬߩࠥࡁࡓㆮવሶࠍዉ౉ߒߚᒻ⾰ォ឵ᬀ. ACCG㧕෸߮ CPR-1㧔GAGCTCTCATAACCCCTTAACG. ‛ߦ߅ߌࠆ࠙ࠗ࡞ࠬᛶ᛫ᕈߦߟ޿ߡ⎇ⓥ߇ㅴ߼ࠄࠇ㧘. CC㧕ࠍ㧘NIb3’ߦߟ޿ߡߪ NIbF1㧔GGATCCTATTGCGAT.

(3) 2012 神奈川県農業技術センター研究報告 第 155 号 2012 ␹ᄹᎹ⋵ㄘᬺᛛⴚ࠮ࡦ࠲࡯⎇ⓥႎ๔ ╙ 155 ภ. . GCTGATGGCTC㧕෸߮ NIbR1 㧔GAGCTCTTACTGGT. N.benthamiana ߩ ᒻ ⾰ ォ ឵ ߪ ࡝ ࡯ ࡈ ࠺ ࠖ ࠬ ࠢ ᴺ. GATAAACACAAGCTT㧕ࠍ㧘߹ߚ㧘VPg ߦߟ޿ߡߪ. 㧔Horsch et al 1985㧕ߦࠃࠅⴕߞߚ㧚N.bentahmiana ߩ. VPgF1㧔GGATCCATGGCGAAAGGCAAGAGGCAAA. ⪲ࠍ 70 %ࠛ࠲ࡁ࡯࡞ߢ㧝ಽ෸߮ᰴ੝Ⴎ⚛㉄࠽࠻࡝࠙. G㧕෸߮ VPgR1㧔GAGCTCTTACTCGTGGTCCACTG. ࡓߢ㧡ಽ㑆ᠣᜈᓟ㧘Ṍ⩶᳓ߢᵞᵺߒߚ㧚ࠪࡖ࡯࡟ౝߩ. GGGACGA㧕ࠍ↪޿ߚ㧚ߥ߅㧘ࡃࠗ࠽࡝࡯ࡌࠢ࠲࡯. ࠕࠣࡠࡃࠢ࠹࡝࠙ࡓ⩶ᶧਛߢ 1cm ⒟ᐲߦࡔࠬߢಾᢿߒ㧘. pBI121 ߦࠢࡠ࡯࠾ࡦࠣߔࠆߚ߼㧘޿ߕࠇߩࡊ࡜ࠗࡑ࡯. MS-NB ၭ࿾㧔1 µg/ml 6-ࡌࡦࠫ࡞ࠕࡒࡁࡊ࡝ࡦ㧘0.1. ߦ߽೙㒢㉂⚛ㇱ૏ߣߒߡࡈࠜࡢ࡯࠼ࡊ࡜ࠗࡑ࡯ߦߪ. µg/ml ࠽ࡈ࠲࡟ࡦ㈶㉄฽߻㧕ߦ⟎ᐥߒߡ౒ሽၭ㙃ߒߚ㧚. BamHI ㇱ૏ࠍ㧘߹ߚ㧘࡝ࡃ࡯ࠬࡊ࡜ࠗࡑ࡯ߦߪ SacI. 㧟ᣣᓟߦࠢ࡜ࡈࠜ࡜ࡦࠍ฽߻ MS-NB ၭ࿾ߦ⒖ᬀߒ㧘. ㇱ૏ࠍઃടߒߚ㧔㈩೉ਅ✢ㇱ㧕㧚RT-PCR ߦߪ♖⵾ߒߚ. ࠕࠣࡠࡃࠢ࠹࡝࠙ࡓࠍ㒰⩶ߔࠆߣߣ߽ߦࠞ࡞ࠬᒻᚑࠍ. TuMV-JO ߩ RNA ࠍ ㍌ ဳ ߦ RNA LA PCR ࠠ ࠶ ࠻. ଦㅴߒߚ㧚10 ᣣᓟߦࠞ࠽ࡑࠗࠪࡦ㧔25 µg/ml㧕෸߮ࠢ. 㧔TaKaRa㧕ࠍ↪޿ߡⴕߞߚ㧚RT-PCR ߩ෻ᔕ᧦ઙߪᣢ. ࡜ࡈࠜ࡜ࡦ㧔150 µg/ml㧕ࠍ฽߻ MS-NB ၭ࿾ߦ⒖ᬀߒ㧘. ႎ㧔Nomura et al 2004㧕ߦḰߓߡⴕߞߚ㧚. ࠞ࠽ࡑࠗࠪࡦ⠴ᕈࠍㆬᛮࡑ࡯ࠞ࡯ߦߒߡᒻ⾰ォ឵૕ߩ. PCR Ⴧ ᏷ ᢿ   ߪ ޿ ߕ ࠇ ߽ 㧘 pT7Blue ࡌ ࠢ ࠲ ࡯. ㆬᛮࠍㅴ߼ߚ㧚ࠞ࡞ࠬ߆ࠄᒻᚑߐࠇߚਇቯ⧘ࠍߐࠄߦ. 㧔Novagen㧕ߦࠢࡠ࡯࠾ࡦࠣᓟ㧘ABI3130DNA ࠪ࡯ࠤ. ࠞ࠽ࡑࠗࠪࡦ෸߮ࠢ࡜ࡈࠜ࡜ࡦࠍ฽߻ MS ၭ࿾ߦ⒖ᬀ. ࡦࠨ࡯ߦࠃࠅႮၮ㈩೉ࠍ᳿ቯߒ㧘⋡⊛ߣߔࠆㆮવሶ߇. ߒߡㆬᛮࠍㅴ߼ߚ㧚ౣಽൻߒߡ⊒ᩮߒ㧘ᬀ‛૕߇ᱜᏱ. න㔌ߢ߈ߡ޿ࠆߎߣࠍ⏕⹺ߒߚ㧚ࠢࡠ࡯࠾ࡦࠣߒߚฦ. ߦ↢⢒ߒߚ߽ߩࠍ T0 ਎ઍߣߒߡ㗅ᰴ㋬਄ߍߒ㧘25 ͠㧘. ㆮવሶᢿ ࠍ฽߻ࡊ࡜ࠬࡒ࠼ࠍ೙㒢㉂⚛ BamHI ෸߮. 12 ᤨ㑆ᣣ㐳ߩࠣࡠ࡯ࠬ࠴ࡖࡦࡃ࡯ߢ⢒ᚑߒߚ㧚ฦᒻ⾰. SacI ߢಣℂߒߡฦㆮવሶᢿ ࠍࠥ࡞♖⵾ߒߚ㧚ฦㆮવ. ォ឵૕߆ࠄᰴ਎ઍࠍណ⒳ߒ㧘ࠞ࠽ࡑࠗࠪࡦ㧔25 µg/l㧕. ሶࠍࡃࠗ࠽࡝࡯ࡌࠢ࠲࡯pBI121 ߩ GUS ㆮવሶߣ⟎឵. ࠍ฽߻ MS ၭ࿾ߦή⩶᠞⒳ߒ㧘ࠞ࠽ࡑࠗࠪࡦ⠴ᕈࠍࡑ. ߒ㧘ㆮવሶዉ౉↪ߩࠦࡦࠬ࠻࡜ࠢ࠻ߣߒߡ pBI-CP3’㧘. ࡯ࠞ࡯ߦߒߡᒻ⾰ォ឵૕ T1 ਎ઍࠍㆬᛮߒߚ㧚. pBI-NIb3’෸߮ pBI-VPg ࠍ᭴▽ߒߚ㧔࿑ 1㧕㧚ߎࠇࠄߩ. 㧟㧚᳝ᶧធ⒳⹜㛎. ࠦࡦࠬ࠻࡜ࠢ࠻ߪߘࠇߙࠇ࠻࡝ࡍࠕ࡟ࡦ࠲࡞ࡔࠗ࠹ࠖ.  TuMV-JO ߦᗵᨴߒߚࠦࠞࡉ߹ߚߪ N.benthamiana ߩ. ࡦࠣᴺ㧔Ditta et al 1980㧕ߦࠃࠅࠕࠣࡠࡃࠢ࠹࡝࠙ࡓ. ࡕࠩࠗࠢ⪲ࠍធ⒳Ḯߣߒ㧘T1 ෸߮ߘߩ⥄ᱺᓟઍߢ޽ࠆ. 㧔LBA4404㧕ߦ⒖ⴕߐߖߚ㧚. T2 ਎ઍߩ♽⛔ฦ 8㨪20 ୘૕ߦቯᴺߦࠃࠅ᳝ᶧធ⒳ߒߚ㧚. 㪩㪙. 䇭㪣㪙 㪥㪦㪪㪄㫇㫉㫆 㪥㪧㪫㸈 㪥㪦㪪㪄㫋㪼㫉. 㪚㪸㪤㪭㩷㪊㪌㪪㩷㫇㫉㫆. 㪥㪦㪪㪄㫋㪼㫉 㪫㫌㪤㪭㪄㪚㪧 㪏㪍㪋㪹㫇 㪙㪸㫄㪟㪠㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㪪㪸㪺㪠. 㪩㪙. ⥄ኅฃ♖ߦࠃࠅᰴ਎ઍࠍណ⒳࡮⢒ᚑߒ㧘T3 ෸߮ T4 ਎ઍ ߳ߩធ⒳ࠍⴕߥߞߡ TuMV ߦኻߔࠆ෻ᔕࠍ⺞ߴߚ㧚. 䇭㪣㪙 㪥㪦㪪㪄㫇㫉㫆 㪥㪧㪫㸈 㪥㪦㪪㪄㫋㪼㫉. 㪚㪸㪤㪭㩷㪊㪌㪪㩷㫇㫉㫆. 㪫㫌㪤㪭㪄㪚㪧㪊㩾 㪥㪦㪪㪄㫋㪼㫉 㪋㪊㪇㪹㫇 㪙㪸㫄㪟㪠㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㪪㪸㪺㪠. 㧠㧚 ዉ౉ㆮવሶߩ ዉ౉ㆮવሶߩ⏕⹺  ᒻ⾰ォ឵ᬀ‛ߦ߅ߌࠆዉ౉ㆮવሶߩ⏕⹺ߪ㧘T0 ਎ઍ. 㪩㪙. 䇭㪣㪙 㪥㪦㪪㪄㫇㫉㫆 㪥㪧㪫㸈 㪥㪦㪪㪄㫋㪼㫉. 㪚㪸㪤㪭㩷㪊㪌㪪㩷㫇㫉㫆. 㪥㪦㪪㪄㫋㪼㫉 㪫㫌㪤㪭㪄㪥㪠㪹㪊㩾 㪏㪉㪇㪹㫇 㪙㪸㫄㪟㪠㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㪪㪸㪺㪠. 㪩㪙. 䇭㪣㪙 㪥㪦㪪㪄㫇㫉㫆 㪥㪧㪫㸈 㪥㪦㪪㪄㫋㪼㫉. 㪚㪸㪤㪭㩷㪊㪌㪪㩷㫇㫉㫆. ߹ߚ㧘ᛶ᛫ᕈ୘૕߇ᓧࠄࠇߚ♽⛔ߩ৻ㇱߦߟ޿ߡߪ㧘. 㪫㫌㪤㪭㪄㪭㪧㪾 㪥㪦㪪㪄㫋㪼㫉 㪌㪎㪌㪹㫇 㪙㪸㫄㪟㪠㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㪪㪸㪺㪠. ߦߟ޿ߡߪࠞ࠽ࡑࠗࠪࡦ⠴ᕈ୘૕ࠍㆬᛮ࡮⢒ᚑᓟ㧘CP ㆮવሶߦߟ޿ߡߪ TuMV-CP ㆮવሶߩౝㇱߦ⸳⸘ߒߚ ᬌ಴ࡊ࡜ࠗࡑ࡯ߦࠃࠆ PCR ߦࠃࠅⴕߞߚ㧚ᬌ಴ࡊ࡜ࠗ ࡑ ࡯ ߦ ߪ CP ㆮ વ ሶ ౝ ㇱ ߦ ⸳ ⸘ ߒ ߚ CPU1 㧔 5’-TTAACAGACGAGCAAAAGCA-3’ 㧕 ෸ ߮ CPL1 㧔5’-TCCATCCAAGCCGAACAAAT-3’㧕ࠍ↪޿㧘ᒻ⾰ ォ឵૕߆ࠄ᛽಴ߒߚో DNA ࠍ㍌ဳߦ PCR ࠍⴕߞߚ㧚. ࿑㧝‫࡯࠲ࠢࡌ࡯࡝࠽ࠗࡃޓ‬R$+ࠍၮߦ᭴▽ߒߚࠦࡦࠬ࠻࡜ࠢ࠻ߩ᭴ㅧ㧚 0152TQ㧦ࡁࡄ࡝ࡦࠪࡦ࠮࠲࡯࠯ࡊࡠࡕ࡯࠲࡯026Τ㧦ࠞ࠽ࡑࠗࠪࡦᛶ᛫ᕈㆮવሶ015 6GT㧦ࡁࡄ࡝ࡦࠪࡦ࠮࠲࡯࠯࠲࡯ࡒࡀ࡯࠲࡯%C/8㧿RTQ㧦ࠞ࡝ࡈ࡜ࡢ࡯ࡕࠩࠗࠢ࠙ࠗ࡞ࠬ 㧿ࡊࡠࡕ࡯࠲࡯6W/8㧦ࠞࡉࡕࠩࠗࠢ࠙ࠗ࡞ࠬ%2㧦ᄖⵍ࠲ࡦࡄࠢ⾰ㆮવሶ0+D㧦ⶄ⵾㉂ ⚛ㆮવሶ82I㧦ࠥࡁࡓ⚿ว࠲ࡦࡄࠢ⾰ㆮવሶ. ߹ߚ㧘CP3’㧘NIb3’෸߮ VPg ㆮવሶߩᬌ಴ߦߟ޿ߡߪ. 㧞㧚 Nicotiana benthamiana ߩᒻ⾰ォ឵. ࡦࠍ฽߻ MS ၭ࿾ߦή⩶ߪ⒳ߒ㧘⮎೷⠴ᕈߦࠃࠆㆬᛮ. ዉ౉ㆮવሶߩჇ᏷ߦ↪޿ߚࡊ࡜ࠗࡑ࡯ߦࠃࠆ PCR ߦ ࠃࠅⴕߞߚ㧚T1 ਎ઍߦߟ޿ߡߪ⥄ᱺ⒳ሶࠍࠞ࠽ࡑࠗࠪ.

(4) . カブモザイクウイルス(TuMV)ゲノム由来の遺伝子を導入した Nicotiana benthamiana における TuMV 抵抗性 ࠞࡉࡕࠩࠗࠢ࠙ࠗ࡞ࠬ㧔6W/8㧕ࠥࡁࡓ↱᧪ߩㆮવሶࠍዉ౉ߒߚ 0KEQVKCPCDGPVJCOKCPC ߦ߅ߌࠆ 6W/8 ᛶ᛫ᕈ. ᓟ㧘PCR ߦࠃࠅዉ౉ㆮવሶࠍᬌ಴ߒߡ⋡⊛ߣߔࠆᒻ⾰. ߒߚ PCR ࡊࡠ࡯ࡉࠍ↪޿㧘ࡂࠗࡉ࡝࠳ࠗ࠯࡯࡚ࠪࡦ෸. ォ឵૕ߢ޽ࠆߎߣࠍ⏕⹺ߒߚ㧚ߐࠄߦ㧘ᛶ᛫ᕈ෸߮ᗵ. ߮ࠪࠣ࠽࡞ߩᬌ಴ࠍⴕߞߚ㧚. ฃᕈࠍ␜ߔౖဳ⊛ߥ♽⛔ࠍⶄᢙㆬ߮㧘ࠨࠩࡦࡉࡠ࠶࠻. 㧣㧚 TuMV ᛶ᛫ᕈᒻ⾰ォ឵૕߆ࠄߩ ᛶ᛫ᕈᒻ⾰ォ឵૕߆ࠄߩ siRNA ߩᬌ಴. ⸃ᨆࠍⴕߞߚ㧚. ో RNA ߪࡁ࡯ࠩࡦࡉࡠ࠶࠻⸃ᨆߣห᭽ߦ 0.5 g ߩ. 㧡㧚ࠨࠩࡦࡉࡠ࠶࠻⸃ᨆ ࠨࠩࡦࡉࡠ࠶࠻⸃ᨆ. ⪲߆ࠄ᛽಴ߒߚ㧚siRNA ߩಽ↹ߦߪႮൻ࡝࠴࠙ࡓࠍ.   0.5 g ߩ⪲߆ࠄో DNA ࠍ CTAB ᴺߦࠃࠅ᛽಴ߒߚ㧚. ↪޿ߡಽ↹ߒߚ㧚ࠛ࠲ࡁ࡯࡞ᴉᲚᓟߩૐಽሶ RNA ࠨ. ߹ߕ㧘0.1㨪1 g ߩ⪲ࠍ-80 ͠ߩࡈ࡝࡯ࠩ࡯ౝߢ੃㋬ߣ. ࡦࡊ࡞ࠍ 50 µl ߩ DEPC ಣℂ᳓ߦṁ⸃ߒ㧘ߎߩౝ 10 µl. ߣ߽ߦಓ⚿ᓟ㧘⏴⎈ߒߡࡄ࠙࠳࡯⁁ߦߒߚ㧚੃㋬ߦࠨ. ࠍ㔚᳇ᵒേߦଏ⹜ߒߚ㧚pT7Blue ࡌࠢ࠲࡯ߦᝌ౉ߒߚ. ࡦࡊ࡞ߩ 3 ୚㊂ߩ CTAB ᛽಴ᶧࠍട߃ߡᷙวߒ㧘ṁ⸃. CP ㆮવሶࠍ↪޿㧘DIG ࡜ࡌ࡞ߒߚ࠮ࡦࠬ㎮ߩ RNA. ᓟ㧘ࡑࠗࠢࡠ࠴ࡘ࡯ࡉ߹ߚߪ 15 ml ㆙ᔃ࠴ࡘ࡯ࡉߦ࿁. ࡊࡠ࡯ࡉࠍߘࠇߙࠇวᚑߒ㧘ࡂࠗࡉ࡝࠳ࠗ࠯࡯࡚ࠪࡦ. ෼ߒߚ㧚1/2 ኈ㊂ߩ TE 㘻๺ࡈࠚࡁ࡯࡞෸߮ࠢࡠࡠࡈࠜ. ߦ↪޿ߚ㧚㔚᳇ᵒേ෸߮࠽ࠗࡠࡦࡔࡦࡉ࡟ࡦ߳ߩォ౮㧘. ࡞ࡓࠍട߃ߡォୟᷙ๺ߒ㧘15,000 × g ߢ 10 ಽ㑆㆙ᔃߒ. ࠪࠣ࠽࡞ߩᬌ಴ߪ޿ߕࠇ߽ࡁ࡯ࠩࡦࡉࡠ࠶࠻ߣห᭽. ߚ㧚਄ጀࠍ࿁෼ߒ㧘╬㊂ߩࠢࡠࡠࡈࠜ࡞ࡓ࡮ࠗ࠰ࠕࡒ. ߩᚻᴺߢⴕߞߚ㧚. ࡞ࠕ࡞ࠦ࡯࡞ࠍട߃ߡォୟᷙ๺ߒ㧘15,000 × g ߢ 10 ಽ. ⚿  ᨐ. 㑆㆙ᔃߒߚ㧚਄ጀࠍ࿁෼ߒ㧘╬㊂ߩࠗ࠰ࡊࡠࡄࡁ࡯࡞ ߹ߚߪ 2.5 ୚㊂ߩ 99 %ࠛ࠲ࡁ࡯࡞ࠍട߃ߡᷙวߒ㧘. 㧝㧚TuMV-CP ㆮવሶࠍ ㆮવሶࠍዉ౉ߒߚ ዉ౉ߒߚ Nicotiana benthamiana. 15,000 × g ߢ 15 ಽ㑆㆙ᔃߒߡ DNA ࠍᴉᲚߐߖߚ㧚. ߩ TuMV ߦኻ ߔࠆ෻ᔕ ߔࠆ෻ᔕ. 70 %ࠛ࠲ࡁ࡯࡞ᵞᵺࠍⴕ޿㧘10 ಽ㑆㘑ੇᓟ㧘RNase ࠍ.  N.benthamiana ߦ࡝࡯ࡈ࠺ࠖࠬࠢᴺߢ TuMV-CP ෸߮. ฽߻ TE ߦṁ⸃ߒߡ DNA ࠨࡦࡊ࡞ߣߒߚ㧚ಽశశᐲ⸘. CP3’ࠍዉ౉ߒ㧘ฦㆮવሶߦߟ޿ߡ 20 ୘૕ߩࠞ࠽ࡑࠗ. 㧔Beckman㧕ߦࠃࠅ DNA ߩỚᐲࠍ᷹ቯߒ㧘10 µg ߩࠥ. ࠪࡦ⠴ᕈࠍ␜ߔౣಽൻ୘૕ࠍᓧߚ㧚ߎࠇࠄߩᐜᬀ‛߆. ࡁࡓ DNA ࠍ೙㒢㉂⚛ BamHI ߢᶖൻߒߚ㧚೙㒢㉂⚛ಣ. ࠄ DNA ࠍ᛽಴ߒ㧘PCR ᴺߦࠃࠅዉ౉ㆮવሶߩሽ࿷ࠍ. ℂᓟߩ DNA ࠍࡈࠚࡁ࡯࡞࡮ࠢࡠࡠࡈࠜ࡞ࡓ᛽಴ߦࠃ. ⺞ߴߚ⚿ᨐ㧘ోߡߩ୘૕߆ࠄ⋡⊛ߣߔࠆㆮવሶ߇ᬌ಴. ࠅ♖⵾ߒ㧘ࠛ࠲ࡁ࡯࡞ᴉᲚᓟ㧘10 µl ߩ TE ߦౣᐲṁ⸃. ߐࠇߚ㧚ߎࠇࠄߩᒻ⾰ォ឵૕ T0 ਎ઍ߆ࠄ T1 ਎ઍࠍណ. ߒ㧘1 %ࠕࠟࡠ࡯ࠬࠥ࡞㔚᳇ᵒേᓟ㧘ࡃࠠࡘ࡯ࡓࡉࡠ. ⒳ߒ㧘ࠞ࠽ࡑࠗࠪࡦߦࠃࠆㆬᛮࠍߒߡ⢒ᚑᓟ㧘TuMV. ࠶࠹ࠖࡦࠣⵝ⟎. ᛶ᛫ᕈᬌቯߦଏ⹜ߒߚ㧚ߘߩ⚿ᨐ㧘TuMV-CP ࠍዉ౉ߒ. 㧔Bio-Rad㧕ࠍ↪޿ߡ࠽ࠗࡠࡦࡔࡦࡉ࡟ࡦ㧔Roshe㧕ߦ. ߚᒻ⾰ォ឵૕㧔Nb-Tu-CP㧕ߢߪ T1 ਎ઍߩᄙߊߪ㕖ᒻ⾰. DNA ࠍォ౮ߒߚ㧚ࡊࡠ࡯ࡉߩวᚑߪ DIG PCR ࡊࡠ࡯. ォ឵૕ߣห᭽ߦ TuMV ᗵฃᕈߢ޽ߞߚ߇㧘ᛶ᛫ᕈ୘૕. ࡉวᚑࠠ࠶࠻ 㧔Roshe㧕 ࠍ↪޿㧘ฦㆮવሶࠍࠢࡠ࡯࠾. ߇ᄙߊࠍභ߼ࠆᒻ⾰ォ឵♽⛔߇⹺߼ࠄࠇ㧘CP1㧘CP2㧘. ࡦࠣߒߚࡊ࡜ࠬࡒ࠼ࠍ㍌ဳߦߒߡዉ౉ㆮવሶߦ⋧ᒰߔ ࠆࡊࡠ࡯ࡉࠍวᚑߒߚ㧚ࡊࡠ࠻ࠦ࡯࡞ߦᓥ޿㧘 0.1 %SDS ࠍ฽߻ 2˜SSC ෸߮ 0.2˜SSC ߦࠃࠆᵞᵺ㧘 ࡉࡠ࠶ࠠࡦࠣ෸߮ AP ᮡ⼂ DIG ᛫૕ಣℂࠍⴕ޿㧘ࡔࡦ ࡉ࡟ࡦߩᵞᵺᓟ㧘ൻቇ⊒శᬌ಴ࡈࠖ࡞ࡓ㧔Roche㧕ߦ 5 㨪15 ಽ㑆㔺శߒߡࠪࠣ࠽࡞ࠍᬌ಴ߒߚ㧚 㧢㧚ࡁ࡯ࠩࡦࡉࡠ࠶࠻⸃ᨆ ࡁ࡯ࠩࡦࡉࡠ࠶࠻⸃ᨆ ో RNA ߪ Easyprep RNA ᛽಴ࠠ࠶࠻㧔TaKaRa㧕ࠍ. A. B. C. D. ↪޿㧘0.5 g ߩ⪲߆ࠄ᛽಴ߒߚ㧚޿ߕࠇߩࠨࡦࡊ࡞߽ 5 µl ߩో RNA ࠍ MOPS ᄌᕈࠥ࡞ߦࠃࠅᵒേߒ㧘ࡃࠠࡘ ࡯ࡓࡉࡠ࠶࠹ࠖࡦࠣߦࠃࠅ࠽ࠗࡠࡦࡔࡦࡉ࡟ࡦߦォ౮ ߒߚ㧚ࡊࡠ࡯ࡉߦߪࠨࠩࡦࡉࡠ࠶࠻ߣห᭽ߦ DIG ᮡ⼂. ࿑ 2 N.benthamiana 㕖ᒻ⾰ォ឵૕(A)෸߮ TuMV-CP ㆮવሶࠍዉ౉ ߒߚᒻ⾰ォ឵૕(B~D)ߩ TuMV ߦኻߔࠆ෻ᔕ. A, B㧦ᗵฃᕈ‫ޔ‬C㧦࿁ᓳဳᛶ᛫ᕈ‫ޔ‬D㧦ᛶ᛫ᕈ.

(5) 2012 神奈川県農業技術センター研究報告 第 155 号 2012 ␹ᄹᎹ⋵ㄘᬺᛛⴚ࠮ࡦ࠲࡯⎇ⓥႎ๔ ╙ 155 ภ. ⴫1‫ޓ‬TuMV-CPㆮવሶࠍዉ౉ߒߚN.benthamiana ᒻ⾰ォ឵૕ T1෸߮T2਎ઍߩTuMVߦኻߔࠆ෻ᔕ. ⷫ♽⛔ ‫ޓ‬6Qᬀ‛ %2 %2 %2 %2 %2 %2 %2 %2 %2 %2 %2 %2 %2 %2 %2 %2 %2 %2 %2 %2 ‫ޓ‬6ᬀ‛ %24 4 4 %24 4 4 %25 5 %24 4 4. 6W/8ߦኻߔࠆ෻ᔕ ᛶ᛫ᕈ㧔߁ߜ࿁ᓳဳ㧕ᗵฃᕈ. ᛶ᛫ᕈ୘૕ 㧔㧑㧕. . TuMV-CP3’ࠍዉ౉ߒߚᒻ⾰ォ឵૕㧔Nb-Tu-CP3’㧕ߩ TuMV ߦኻߔࠆ෻ᔕߪ Nb-Tu-CP ߣ߶߷ห᭽ߢ޽ࠅ㧘 ߘߩ෻ᔕߪቢోߥᛶ᛫ᕈࠍ␜ߔ୘૕㧘࿁ᓳဳᛶ᛫ᕈࠍ ␜ߔ୘૕෸߮ᗵฃᕈ୘૕ߦಽ㘃ߐࠇߚ߇㧘ᛶ᛫ᕈ୘૕.                                       .                    .                    .           .           . ߇ᓧࠄࠇߚߩߪ CP3’1㧘CP3’3㧘CP3’4㧘CP3’5㧘CP3’6㧘 CP3’9㧘CP3’10㧘CP3’12 ෸߮ CP3’13 ߩ 9 ♽⛔ߢ޽ߞߚ 㧔⴫ 2㧕㧚ߎߩ߁ߜ T1 ୘૕ߩㆊඨᢙ߇ᛶ᛫ᕈߣߥࠆ♽ ⛔ߪ CP3’3 ෸߮ CP3’9 ߩ 2 ♽⛔ߢ޽ࠅ㧘CP3’3 ෸߮ CP3’10 ߩ৻ㇱ ߦߟ޿ ߡ ߪ࿁ᓳဳ ᛶ᛫ᕈ ࠍ␜ߒ ߚ 㧚 CP3’3 ߩ T1 ୘૕߆ࠄᛶ᛫ᕈߩ 5 ୘૕ࠍㆬᛮߒ㧘T2 ਎ઍ 㧔CP3’3-R1㨪R5㧕ߩᬌቯࠍⴕߞߚߣߎࠈ㧘Nb-Tu-CP ߣห᭽ߦోߡߩ୘૕߇ TuMV ᛶ᛫ᕈߩ♽⛔㧔CP3’3-R1 㨪R3㧕ߣ㧘ᛶ᛫ᕈ/ᗵฃᕈ߇ಽ㔌ߔࠆ♽⛔㧔CP3’3-R4, R5㧕߇ᓧࠄࠇߚ㧚 ⴫㧞‫ޓ‬6W/8%2̉ㆮવሶࠍዉ౉ߒߚ0DGPVJCOKCPC ᒻ⾰ォ឵૕ T1෸߮T2਎ઍߩTuMVߦኻߔࠆ෻ᔕ. ⷫ♽⛔. 6W/8ߦኻߔࠆ෻ᔕ ᛶ᛫ᕈ㧔߁ߜ࿁ᓳဳ㧕ᗵฃᕈ. ‫ޓ‬6Qᬀ‛ %2   %2   %2    %2   %2   %2   %2   %2   CP9㧘CP12㧘CP13㧘CP19 ෸߮ CP20 ߩ㧣♽⛔ߦߟ޿ߡ %2   %2    ߪଏ⹜୘૕ߩ 50%એ਄߇ TuMV ធ⒳ᓟ߽ోߊ∛ᓽ߇⹺ %2   %2   ߼ࠄࠇߥ޿ߎߣ߆ࠄ TuMV ᛶ᛫ᕈ♽⛔ߣ್ᢿߒߚ㧔⴫ %2   1, ࿑ 2D㧕㧚߹ߚ㧘ធ⒳ߒߚ♽⛔ਛߩ৻ㇱᬀ‛ߦ㧘TuMV %2   %2   ࠍធ⒳ߒߚᓟߦዷ㐿ߒߡߊࠆ⪲ߦߪ∛ᓽ߇⷗ࠄࠇࠆ߇㧘 %2   %2   ߘߩᓟߦዷ㐿ߔࠆ⪲ߦߪ∛ᓽ߇⹺߼ࠄࠇߥߊߥࠆ࿁ᓳ %2   ဳᛶ᛫ᕈࠍ␜ߔ୘૕߇⏕⹺ߐࠇߚ㧔࿑ 2 C㧕㧚 %2   %2   ᛶ᛫ᕈ♽⛔ CP1㧘CP2 ෸߮ CP12 ߆ࠄߘࠇߙࠇ㧟୘૕ ‫ޓ‬6ᬀ‛ %2 4  ࠍㆬ߮㧘ᓟઍࠍណ⒳ߒ㧘ࠞ࠽ࡑࠗࠪࡦߦࠃࠆㆬᛮ࡮⢒ 4  ᚑᓟ㧘TuMV ᛶ᛫ᕈᬌቯࠍⴕߞߚ㧚ߘߩ⚿ᨐ㧘ଏ⹜୘ 4  4  ૕ ߩ ో ߡ ߇ ᛶ ᛫ ᕈ ࠍ ␜ ߔ ♽ ⛔ 㧔 CP2-R2 㧘 CP2-R3 㧘 4  CP12-R1㧘CP12-R2㧕෸߮ᛶ᛫ᕈߣᗵฃᕈ߇ಽ㔌ߔࠆ♽. ᛶ᛫ᕈ୘૕ 㧔㧑㧕.                    .                    .     .     . ⛔㧔CP1-R1㧘CP1-R2㧘CP1-R3㧘CP2-R1㧘CP12-R3㧕 ߇ᓧࠄࠇߚ㧚߹ߚ㧘ో୘૕߇ᛶ᛫ᕈߣߥࠆ♽⛔ߩᓟઍ. 㧞 㧚 NIb ෸ ߮ VPg ㆮ વ ሶ ࠍ ዉ ౉ ߒ ߚ Nicotiana. ߦߟ޿ߡᛶ᛫ᕈᬌቯࠍⴕߞߚߣߎࠈ㧘ోߡߩ୘૕߇ᛶ. benthamiana ߩ TuMV ߦኻ ߔࠆ෻ᔕ ߔࠆ෻ᔕ. ᛫ᕈߢ޽ߞߚ㧔࠺࡯࠲⋭⇛㧕㧚.  N.benthamiana ߦ TuMV ߩ NIb3’ࠍዉ౉ߒߚ 20 ୘૕.

(6) . カブモザイクウイルス(TuMV)ゲノム由来の遺伝子を導入した Nicotiana benthamiana における TuMV 抵抗性 ࠞࡉࡕࠩࠗࠢ࠙ࠗ࡞ࠬ㧔6W/8㧕ࠥࡁࡓ↱᧪ߩㆮવሶࠍዉ౉ߒߚ 0KEQVKCPCDGPVJCOKCPC ߦ߅ߌࠆ 6W/8 ᛶ᛫ᕈ. ߩౣಽൻ୘૕ࠍᓧߚ㧚ߎࠇࠄߩᒻ⾰ォ឵૕. ᕈࠍ␜ߒߚߩߪ VPg6㧘VPg7 ෸߮ VPg9 ߩ 3 ♽⛔ߢ޽. 㧔Nb-Tu-NIb3’㧕 T0 ਎ઍ߆ࠄᰴ਎ઍ㧔T1 ਎ઍ㧕ࠍ⥄ኅ. ߞߚ㧚. ណ⒳࡮⢒ᚑߒߡ TuMV ᛶ᛫ᕈᬌቯߦଏ⹜ߒߚ㧔⴫ 3㧕㧚 ߘߩ⚿ᨐ㧘T1 ਎ઍߩᄙߊߪ CP ㆮવሶࠍዉ౉ߒߚ႐ว ߣหߓߊ TuMV ᗵฃᕈߢ޽ߞߚ߇㧘NIb3’3㧘NIb3’7㧘 NIb3’8㧘NIb3’10㧘NIb3’12㧘NIb3’14 ෸߮ NIb3’15 ߩ㧣 ♽⛔ߢߪ 50~90 %ߩ୘૕߇ቢోߥᛶ᛫ᕈࠍ␜ߒߚ㧚߹ ߚ㧘NIb3’3 ෸߮ NIb3’10 ߩਛߦ࿁ᓳဳᛶ᛫ᕈࠍ␜ߔ୘ ૕߇⏕⹺ߐࠇߚ㧚ᛶ᛫ᕈ♽⛔ NIb3’3 ෸߮ NIb3’7 ߩ T1 ᬀ‛߆ࠄᓟઍࠍណ⒳ߒ㧘ࠞ࠽ࡑࠗࠪࡦߦࠃࠆㆬᛮ࡮⢒ ᚑᓟ㧘TuMV ᛶ᛫ᕈᬌቯࠍⴕߞߚ㧚ߘߩ⚿ᨐ㧘ଏ⹜୘ ૕ ߩ ో ߡ ߇ ᛶ ᛫ ᕈ ࠍ ␜ ߔ ♽ ⛔ 㧔 NIb3’3-R1 㨪 R3 㧘 NIb3’7-R1㨪R3㧕߇ᓧࠄࠇߚ㧚 ⴫㧟‫ޓ‬6W/80+D̉ㆮવሶࠍዉ౉ߒߚ0DGPVJCOKCPC ᒻ⾰ォ឵૕ T1෸߮T2਎ઍߩTuMVߦኻߔࠆ෻ᔕ. ⷫ♽⛔. 6W/8ߦኻߔࠆ෻ᔕ ᛶ᛫ᕈ㧔߁ߜ࿁ᓳဳ㧕 ᗵฃᕈ. ‫ޓ‬6Qᬀ‛ 0+D   0+D   0+D    0+D   0+D   0+D   0+D   0+D   0+D   0+D    0+D   0+D   0+D   0+D   0+D   0+D   0+D   0+D   0+D   0+D   ‫ޓ‬6ᬀ‛ 0+D 4  4  4  0+D 4  4  4 . ᛶ᛫ᕈ୘૕ 㧔㧑㧕.                    .                    .      .      . ⴫㧠‫ޓ‬6W/882I‫ޓ‬ㆮવሶࠍዉ౉ߒߚ0DGPVJCOKCPC ᒻ⾰ォ឵૕ T1਎ઍߩTuMVߦኻߔࠆ෻ᔕ. 6W/8ߦኻߔࠆ෻ᔕ ⷫ♽⛔ ᛶ᛫ᕈ㧔߁ߜ࿁ᓳဳ㧕 ᗵฃᕈ 82I㧝   82I㧞   82I㧟    82I㧠    82I㧡    82I㧢   82I㧣   82I㧤   82I㧥   82I㧝㧜    82I㧝㧝   82I㧝㧞   82I㧝㧟   82I㧝㧠   82I㧝㧡   82I㧝㧢   82I㧝㧣   82I㧝㧤   82I㧝㧥   82I㧞㧜   㕖ᒻ⾰ォ឵૕  . ᛶ᛫ᕈ୘૕ 㧔㧑㧕                     . 㧟㧚TuMV-CP ㆮવሶࠍ ㆮવሶࠍዉ౉ߒߚ ዉ౉ߒߚ Nicotiana benthamiana ߩࠨࠩࡦࡉࡠ࠶࠻⸃ᨆ ࠨࠩࡦࡉࡠ࠶࠻⸃ᨆ  Nb-Tu-CP ߩ߁ߜᛶ᛫ᕈ෸߮ᗵฃᕈࠍ␜ߔฦ♽⛔ߩ ࠦࡇ࡯ᢙࠍ⸃ᨆߒߚߣߎࠈ㧘T1 ਎ઍߢᛶ᛫ᕈ♽⛔ߣ್ ᢿߒߚ㧣♽⛔㧔CP1㧘CP2㧘CP9㧘CP12㧘CP13㧘CP19㧘 CP20㧕ߩ߁ߜ CP19 ࠍ㒰ߊ 6 ♽⛔ߢ 2 ᧄએ਄ߩࡃࡦ࠼ ߇⹺߼ࠄࠇ㧘ⶄᢙࠦࡇ࡯ߢ޽ࠆߎߣ߇⏕⹺ߐࠇߚ㧔࿑ 3㧕㧚ߎࠇߦኻߒ㧘ᗵฃᕈ♽⛔ߢߪ㧣♽⛔ਛ 6 ♽⛔㧔CP10㧘 CP11㧘CP14㧘CP15㧘CP16㧘CP17㧕ߢන৻ࡃࡦ࠼߇㧘 ߹ߚ㧘15 %ߩ୘૕߇࿁ᓳဳᛶ᛫ᕈࠍ␜ߒߚ CP18 ߢߪ 2 ᧄߩࡃࡦ࠼߇ᬌ಴ߐࠇߚ㧚 1 . 2 . 3. 4. R. R. R. 5. 6. 7. 8. 9. 10. 11. 12. R. R. S. S. S. S. S. 13. 14.  TuMV ߩ VPg ㆮવሶߦߟ޿ߡ߽ 20 ୘૕ߩᒻ⾰ォ឵ T0 ਎ઍ㧔Nb-Tu-VPg㧕ࠍ₪ᓧߒߚ㧚T1 ਎ઍߩ TuMV ᛶ ᛫ᕈᬌቯߢߪ㧘VPg1㧘VPg2㧘VPg6㧘VPg7㧘VPg8㧘. R. R. S. S. ࿑ 3 TuMV-CP ㆮવሶࠍዉ౉ߒߚ Nicotiana benthamiana ᒻ⾰ォ឵૕ T1 ਎ઍߩࠨࠩࡦ ࡉࡠ࠶࠻⸃ᨆ.. VPg9㧘VPg10 ෸߮ VPg19 ߩ 8 ♽⛔ਛߦᛶ᛫ᕈࠍ␜ߔ. 1, CP1;. ୘૕߇⹺߼ࠄࠇߚ㧔⴫ 4㧕㧚߹ߚ㧘VPg3㧘VPg㧠㧘VPg5. ⴫⃻ဳ R㧦 ᛶ᛫ᕈ S㧦ᗵฃᕈ. 9, CP11;. 2, CP2;. 3, CP9;. 10, CP14;. 4, CP12;. 11, CP15;. 5, CP13;. 12, CP16;. 6, CP19;. 13, CP17;. 7, CP20;. 8, CP10;. 14, CP18.. ෸߮ VPg10 ߩ 4 ♽⛔ਛߦ࿁ᓳဳᛶ᛫ᕈࠍ␜ߔ୘૕߇⏕. 㧠㧚ዉ౉ㆮવሶߩ ዉ౉ㆮવሶ ߩ⊒⃻⸃ᨆ. ⹺ߐࠇߚ㧚ߎࠇࠄߩ߁ߜ 50 %એ਄ߩ୘૕߇ቢోߥᛶ᛫.  Nb-Tu-CP ߩ TuMV ᛶ᛫ᕈ♽⛔෸߮ᗵฃᕈ♽⛔߆ࠄ.

(7) 2012 神奈川県農業技術センター研究報告 第 155 号 2012  ␹ᄹᎹ⋵ㄘᬺᛛⴚ࠮ࡦ࠲࡯⎇ⓥႎ๔ ╙ 155 ภ. . ో RNA ࠍ᛽಴ᓟ㧘ࡁ࡯ࠩࡦࡉࡠ࠶࠻⸃ᨆࠍⴕߞߚ㧚. વሶ߇ᬌ಴ߐࠇߥ޿ߩߦኻߒ㧘ᗵฃᕈ♽⛔ߢ޽ࠆ. ߥ߅㧘T1 ਎ઍߩ⴫⃻ဳߪ RNA ᛽಴↪ߩࠨࡦࡊ࡞⪲ࠍ. NIb3’2㧘NIb3’4㧘NIb3’6㧘෸߮ NIb3’11 ߢዉ౉ㆮવሶ. ណขᓟߦ࠙ࠗ࡞ࠬࠍធ⒳ߒߡ․ቯߒߚ㧚ߘߩ⚿ᨐ㧘ᛶ. ߩ᣿⏕ߥࠪࠣ࠽࡞߇ᬌ಴ߐࠇߚ㧔࿑ 6㧕㧚. ᛫ᕈ♽⛔ߢ޽ࠆ CP1㧘CP2㧘CP9㧘CP12㧘CP13㧘CP19 ෸߮ CP20 ߢߪోߡߩଏ⹜୘૕ߢ mRNA ߇ᬌ಴ߐࠇߥ. 1 . 2 . 3. 4. 5. 6. 7. 8. ޿߆㧘߹ߚߪࠊߕ߆ߦ෻ᔕ߇⹺߼ࠄࠇࠆ⒟ᐲߢ޽ߞߚ TuMV-NIb. ߩߦኻߒ㧘ᗵฃᕈ♽⛔㧔CP10㧘CP11㧘CP14㧘CP15㧘 CP16㧘CP17㧘CP18㧕ߢߪోߡߩ୘૕߆ࠄ CP ߩ mRNA ߇ᬌ಴ߐࠇߚ㧔࿑ 4㧕㧚 1   2  3. 4. . 5. 6. 7. R 8. 9. 10. 11 12. 13. R. R. R. S. S. S. S. 14 rRNA TuMV-CP. R. R. R. R. R. R. R. S. S. S. S. S. S. S. ࿑ 6 TuMV-NIb3’ㆮવሶࠍዉ౉ߒߚ Nicotiana benthamiana ᒻ⾰ォ឵૕ T1 ਎ઍߩࡁ࡯ࠩࡦࡉࡠ࠶࠻⸃ᨆ. rRNA. 1, NIb3’3; 2, NIb3’7; 3, NIb3’8; 4, NIb3’10; 5, NIb3’2; 6, NIb3’4; 7, NIb3’6; 8, NIb3’11..  ࿑ 4 TuMV-CP ㆮવሶࠍዉ౉ߒߚ Nicotiana benthamiana ᒻ⾰ォ឵૕ T1 ਎ઍߩࡁ࡯ࠩ ࡦࡉࡠ࠶࠻⸃ᨆ. 1, CP1; 2, CP2; 3, CP9; 4, CP12; 5, CP13; 6, CP19; 7, CP20; 8, CP10; 9, CP11;. R. S. Nb-Tu-VPg ߦߟ޿ߡߪ VPg1㨪VPg10 ߩ T0 ਎ઍ෸߮ߩ ࡁ࡯ࠩࡦࡉࡠ࠶࠻⸃ᨆࠍⴕߞߚߣߎࠈ‫ޔ‬VPg1㧘VPg3㧘 VPg4㧘VPg5 ߩ mRNA ᬌ಴࡟ࡌ࡞߇㜞߆ߞߚ㧚VPg6㧘. 10, CP14; 11, CP15; 12, CP16; 13, CP17; 14, CP18.. ⴫⃻ဳ R㧦 ᛶ᛫ᕈ S㧦ᗵฃᕈ. VPg7㧘VPg8 ෸߮ VPg10 ߦߟ޿ߡߪࠊߕ߆ߦࠪࠣ࠽࡞. Nb-Tu-CP3’ߢߪ CP3’3-R1㧘CP3’3-R2㧘෸߮ CP3’3-R3. ߇ᬌ಴ߐࠇࠆ⒟ᐲߢ޽ࠅ㧘VPg2㧘VPg9 ߦߟ޿ߡߪᬌ. ࠍᛶ᛫ᕈ♽⛔ߣߒߡㆬᛮߒ㧘ᗵฃᕈ♽⛔ߢ޽ࠆ CP3’2㧘. ಴ߐࠇߥ߆ߞߚ㧔࿑ 7㧕㧚. CP3’7 ෸߮ CP3’8 ߩ T1 ਎ઍߣᲧセߒߚ㧚ߘߩ⚿ᨐ㧘ో. 1 . 2. 3. 4. 5. 6. 7. 8. 9. 10. 㐳ߩ CP ㆮવሶࠍዉ౉ߒߚ႐วߣห᭽ߦᗵฃᕈ♽⛔ߩ. TuMV-VP㨓. ଏ⹜୘૕߆ࠄߪ޿ߕࠇ߽ዉ౉ㆮવሶ߇᣿⏕ߥࠪࠣ࠽࡞. mRNA. ߣߒߡᬌ಴ߐࠇࠆ߇㧘ᛶ᛫ᕈ♽⛔ߩଏ⹜୘૕߆ࠄߪࠊ ߕ߆ߦ෻ᔕ߇⹺߼ࠄࠇࠆ⒟ᐲߢ޽ߞߚ㧔࿑ 5㧕㧚 1. 2. 3. 4. 5. rRNA. 6 TuMV-CP3’. ࿑ 7 TuMV-VPg ㆮવሶࠍዉ౉ߒߚ N.benthamiana T0 ਎ઍߩ ࡁ࡯ࠩࡦࡉࡠ࠶࠻⸃ᨆ. 1, VPg1; 2, VPg2; 3, VPg3; 4, VPg4; 5, VPg5;. R. R. R. S. S. 6, VPg6;. 7, VPg7; 8, VPg8; 9, VPg9; 10, VPg10.. S. rRNA. 㧡 㧚 TuMV-CP ㆮ વ ሶ ࠍ ዉ ౉ ߒ ߚ. Nicotiana. benthamiana ᒻ⾰ォ឵૕߆ࠄߩ ᒻ⾰ォ឵૕߆ࠄߩ siRNA ߩᬌ಴ ࿑ 5 TuMV-CP3’ㆮવሶࠍዉ౉ߒߚ N.benthamiana T1 ਎ઍ෸ ߮ T2 ਎ઍߩࡁ࡯ࠩࡦࡉࡠ࠶࠻⸃ᨆ. 1, CP3’3-R1; 2, CP3’3-R2; 3, CP3’-R3; 4, CP3’2;. 5, CP3’7;. 6, CP3’8. ⴫⃻ R㧦 ᛶ᛫ᕈ S㧦ᗵฃᕈ. Nb-Tu-NIb ߩ T1 ਎ઍߢߪ㧘ᛶ᛫ᕈ♽⛔ߢ޽ࠆ NIb3’3㧘 NIb3’7㧘NIb3’8 ෸߮ NIb3’10 ߩᛶ᛫ᕈ୘૕ߢߪዉ౉ㆮ.  Nb-Tu-CP ߆ࠄ siRNA ߩᬌ಴ࠍ⹜ߺߚ㧚ߘߩ⚿ᨐ㧘 ᛶ᛫ᕈ♽⛔ CP12-R1 ߩ T1 ᬀ‛ߢߪ TuMV ធ⒳೨ߦ෼ 㓸ߒߚ⪲߆ࠄ siRNA ߇ᬌ಴ߐࠇߚߩߦኻߒ㧘࿁ᓳဳᛶ ᛫ᕈࠍ␜ߔ♽⛔ CP4 ߩ T1 ᬀ‛ߢߪ TuMV ធ⒳೨ߦߪ siRNA ߪᬌ಴ߐࠇߕ㧘ធ⒳ᓟߦ∛ᓽࠍ␜ߒߚᓟߦዷ㐿 ߒߡ߈ߚή∛ᓽߩ⪲߆ࠄߪ siRNA ߇ᬌ಴ߐࠇߚ㧚ᗵฃ.

(8) . カブモザイクウイルス(TuMV)ゲノム由来の遺伝子を導入した Nicotiana benthamiana における TuMV 抵抗性 ࠞࡉࡕࠩࠗࠢ࠙ࠗ࡞ࠬ㧔6W/8㧕ࠥࡁࡓ↱᧪ߩㆮવሶࠍዉ౉ߒߚ 0KEQVKCPCDGPVJCOKCPC ߦ߅ߌࠆ 6W/8 ᛶ᛫ᕈ. ᕈ♽⛔㧔CP10-S1㧕ߩᬀ‛߆ࠄߪ siRNA ߪᬌ಴ߐࠇߥ. Germundsson et al 2006㧕㧚ᧄ⎇ⓥߢߪ CP3’㧘NIb3’෸߮. ߆ߞߚ㧔࿑ 9㧕㧚. VPg ㆮવሶࠍዉ౉ߒߚ႐วߦ߽㧘CP ㆮવሶࠍዉ౉ߒߚ ႐วߣห᭽ߦᒝ޿ᛶ᛫ᕈࠍ␜ߔ♽⛔߇ᓧࠄࠇߚ㧚ߘߩ.  . 1 . 2. 3. 4. ₪ᓧ♽⛔ᢙߪ㧘Nb-Tu-CP3’ߢߪ૞಴ߒߚ 20 ♽⛔ਛ 2. . ♽⛔㧔10 %㧕㧘Nb-Tu-NIb ߢߪห᭽ߦ 7 ♽⛔㧔35 %㧕㧘. . Nb-Tu-VPg ߢߪ㧟♽⛔㧔15 %㧕ߢ޽ߞߚ㧚ߎࠇࠄߩ⚿. . ᨐߪㆮવሶ⚵឵߃ߦࠃࠅ TuMV ᛶ᛫ᕈᬀ‛ࠍ⢒ᚑߔࠆ. . ႐ว㧘ၮᧄ⊛ߦߪዉ౉ㆮવሶߩ⒳㘃ߦߪଐሽߒߥ޿ߎ. . ߣࠍ␜ߒߡ޿ࠆ㧚ᧄ⎇ⓥߢዉ౉ߒߚㆮવሶߪ㧘ో㐳ߩ. . CP ㆮવሶએᄖߪ޿ߕࠇ߽࠲ࡦࡄࠢ⾰߳ߩ⠡⸶߇಴᧪. . ߥ޿ㆮવሶߢ޽ࠆ㧚ዉ౉ㆮવሶ↱᧪ߩ mRNA ⊒⃻࡟ࡌ. . ࡞ࠍ⷗ࠆߣ㧘ᛶ᛫ᕈ♽⛔ߢߪ޿ߕࠇ߽ᬌ಴࡟ࡌ࡞߇ૐ siRNA. . ޿߆㧘߹ߚߪᬌ಴ߐࠇߥ߆ߞߚ㧚Nb-Tu-VPg ߢߪᗵฃ. . ᕈ♽⛔ߣห⒟ᐲߩ mRNA ߇ᬌ಴ߐࠇࠆ୘૕߇ሽ࿷ߒ. . ߚ߇㧘ߎࠇࠄߪ޿ߕࠇ߽࿁ᓳဳᛶ᛫ᕈࠍ␜ߔ୘૕ߢ޽. . ࿑ 9  TuMV-CP ㆮવሶࠍዉ౉ߒ. ߞߚ㧚෻ኻߦ㧘mRNA ߇ᬌ಴ߐࠇߥ޿߇ TuMV ᗵฃᕈ. . ߚ Nicotiana benthamiana ߩ TuMV. ࠍ␜ߔ♽⛔߇⹺߼ࠄࠇߚ㧚ߎࠇࠄߩ♽⛔ߦߟ޿ߡߪ. . ᛶ᛫ᕈᒻ⾰ォ឵૕ߦ․⇣⊛ߦᬌ಴ߐ. mRNA ߩォ౮ᛥ೙㧔transcriptional gene silencing㧕߇⿠. . ࠇࠆ siRNA.. 1, ᗵฃᕈᒻ⾰ォ឵૕(CP10-S1); 2, ࿁ᓳ. ߎߞߡ޿ࠆߎߣ߇ផኤߐࠇࠆ㧔Vaucheret and Fagard. ဳᛶ᛫ᕈᒻ⾰ォ឵૕㧔CP4:TuMV ធ⒳೨㧕;. 2001㧕㧚CP ㆮવሶࠍዉ౉ߒߚ TuMV ᛶ᛫ᕈᬀ‛߆ࠄߪ. . 3, ࿁ᓳဳᛶ᛫ᕈᒻ⾰ォ឵૕(CP4:TuMV ធ. RNA ࠨࠗ࡟ࡦࠪࡦࠣߩᜰᮡߣߥࠆዉ౉ㆮવሶ↱᧪ߩ. . ⒳ᓟ); 4, ᛶ᛫ᕈᒻ⾰ォ឵૕(CP12-R1:. siRNA ߇ᬌ಴ߐࠇߚ㧔Hamilton and Baulcombe 1999㧕㧚. . . TuMV ធ⒳೨).. ߎࠇࠄߩ⚿ᨐߪ㧘ᧄታ㛎ߢ↪޿ߚ CP ߿ NIb㧘VPg ߥ ߤߩ࠙ࠗ࡞ࠬㆮવሶࠍዉ౉ߒߡᛶ᛫ᕈᬀ‛ࠍ૞಴ߔࠆ. . ⠨  ኤ. 㓙ߦዉ౉ㆮવሶ↱᧪ߩ࠲ࡦࡄࠢ⾰ߪᔅⷐߥߊ㧘TuMV. TuMV ߩ CP ㆮવሶߩઁ㧘CP ㆮવሶߩ 3’ᧃ┵஥ㇱಽ. ㆮવሶࠍዉ౉ߒ㧘RNA ࠨࠗ࡟ࡦࠪࡦࠣࠍ⿠ߎߒߡ޿ࠆ. Ⴎၮ㈩೉㧔CP3’㧕㧘NIb ㆮવሶߩ 3’ᧃ┵஥ㇱಽႮၮ㈩೉. ୘૕࡮♽⛔ࠍㆬᛮߔࠆߎߣߦࠃࠅ TuMV ᛶ᛫ᕈᬀ‛ࠍ. 㧔NIb3’㧕㧘෸߮ VPg ㆮવሶࠍ N.benthamiana ߦዉ౉ߒ . ૞಴ߔࠆߎߣ߇น⢻ߢ޽ࠆߎߣࠍ␜ߒߡ޿ࠆ㧚. ߚᒻ⾰ォ឵૕ࠍ૞಴ߒ㧘ߘߩ․ᕈࠍ⺞ߴߚ㧚CP ዉ౉ᬀ. TEV ߩ CP ㆮવሶࠍዉ౉ߒߚ࠲ࡃࠦߢߪ㧘࠙ࠗ࡞ࠬ. ‛ߦ߅ߌࠆ TuMV ߦኻߔࠆ෻ᔕࠍ⺞ߴߚ⚿ᨐ㧘7 ♽⛔. ߩᗵᨴߦࠃߞߡ RNA ࠨࠗ࡟ࡦࠪࡦࠣ߇⺃ዉߐࠇࠆ੐. ߩ T1 ਎ઍᬀ‛ߢㆊඨᢙߩଏ⹜୘૕߇㜞ᐲᛶ᛫ᕈࠍ␜. ଀߇ႎ๔ߐࠇߡ޿ࠆ㧚ߎߩ႐ว㧘TEV ߩធ⒳ߦࠃࠅᗵ. ߒߚ㧚N.benthamiana ߪ TuMV ߦኻߔࠆᗵฃᕈ߇㜞ߊ㧘. ᨴೋᦼߦዷ㐿ߒߚ਄⪲ߢߪỗߒ޿∛ᓽ߇⃻ࠇࠆ߇㧘ߘ. ᗵᨴߔࠆߣᩣో૕߇⪜಑ߔࠆߥߤỗߒ޿∛ᓽࠍ␜ߔ߇㧘. ߩᓟዷ㐿ߔࠆ਄⪲ߢߪ∛ᓽ߇シᷫߒ㧘ߐࠄߦ⷗߆ߌ਄. CP ㆮવሶࠍዉ౉ߒߚᒻ⾰ォ឵૕߆ࠄߪ㜞ᐲߥᛶ᛫ᕈ. ஜోߥ⪲߇ዷ㐿ߒߡߊࠆ㧚ή∛ᓽߩ਄⪲ߦߪ TEV ߇߶. ࠍ␜ߒ㧘TuMV ߇ᗵᨴߒߥ޿୘૕߇ㆬᛮߐࠇߚ㧚CP ㆮ. ߣࠎߤᬌ಴ߐࠇߕ㧘ߐࠄߥࠆ TEV ᗵᨴߦኻߒߡᒝ޿ᛶ. વሶએᄖߩㆮવሶࠍዉ౉ߒߚᒻ⾰ォ឵ᬀ‛ߦ߅ߌࠆ࠙. ᛫ᕈࠍ␜ߔ㧚ߎߩࠃ߁ߥ࿁ᓳဳᛶ᛫ᕈߪ࡝ࠞࡃ࡝࡯ߣ. ࠗ࡞ࠬᛶ᛫ᕈߦߟ޿ߡߪ㧘Potyvirus ߢߪ NIb ㆮવሶ߿. ฬઃߌࠄࠇߡ޿ࠆ㧚㧔Lindbo et al 1993㧘Dougherty et al. VPg ㆮવሶ㧘P1 ㆮવሶ㧘HC-Pro ㆮવሶߥߤߦߟ޿ߡ. 1994㧕㧚ᧄ⎇ⓥߢ૞಴ߒߚᒻ⾰ォ឵૕ߩਛߦߪ㧘ធ⒳ᓟ. ⎇ⓥ߇ⴕࠊࠇߚ੐଀߇޽ࠆ㧔Audy et al 1994, Jones et al. ߦዷ㐿ߒߚ⪲ߦߪ∛ᓽ߇⷗ࠄࠇࠆ߇㧘ߘߩᓟߩ↢⢒ߦ. 1998, Moreno et al 1998, Maki-Valkama et al 2000,. ઻޿∛ᓽ߇ᶖᄬߔࠆ࿁ᓳဳᛶ᛫ᕈࠍ␜ߔ୘૕߇⹺߼ࠄ.

(9) 2012 神奈川県農業技術センター研究報告 第 155 号 2012 ␹ᄹᎹ⋵ㄘᬺᛛⴚ࠮ࡦ࠲࡯⎇ⓥႎ๔ ╙ 155 ภ. ࠇ㧘TuMV ߩㆮવሶࠍዉ౉ߒߚᒻ⾰ォ឵૕ߦ߅޿ߡ߽. . ቇ㒮 㔍ᵄᚑછᢎ᝼ߦᷓ⻢ߩᗧࠍ⴫ߔࠆ㧚. ࠙ࠗ࡞ࠬߩᗵᨴߦࠃࠅ RNA ࠨࠗ࡟ࡦࠪࡦࠣ߇⺃ዉߐ ࠇࠆ႐ว߇޽ࠆߎߣ߇⏕⹺ߐࠇߚ㧚. . ዉ౉ㆮવሶߩ㐳ߐߣᛶ᛫ᕈ୘૕ߩ₪ᓧല₸ߦߟ޿. ᒁ↪ᢥ₂. ߡ㧘Pang ࠄ㧔1997㧕ߪ Tomato spotted wilt virus㧔TSWV㧕. Audy, P., Palukaitis, P., Slack, S. A., and Zaitlin, M. 1994.. ߩ㐳ߐߩ⇣ߥࠆ N ㆮવሶᢿ ࠍ N.benthamiana ߦዉ౉. Replicase-mediated resistance to potato virus Y in. ߒߚᒻ⾰ォ឵૕ࠍ૞಴ߒ㧘ዉ౉ㆮવሶ㐳߇ 387㨪453 bp. transgenic. ߢߪ TSWV ᛶ᛫ᕈ♽⛔߇ᓧࠄࠇࠆ߇㧘92㨪235 bp ߢߪ. Interact. 7:15-22.. tobacco. plants.. Mol.. Plant-Microbe. ᛶ᛫ᕈ♽⛔߇ᓧࠄࠇߥ޿ߎߣ㧘߹ߚ㧘236~387 bp ߩㆮ. Beck, D. L., van Dolleweerd, C. J., Lough, T. J., Balmori,. વሶᢿ ࠍ GFP ㆮવሶߣⲢวߐߖߡዉ౉ߔࠇ߫ᛶ᛫. E., Voot, D. M., Andersen, M. T., O’Brien, I. E. W.,. ᕈ♽⛔߇ᓧࠄࠇࠆߎߣ߆ࠄ㧘࠙ࠗ࡞ࠬᛶ᛫ᕈᬀ‛ࠍᓧ. and Forster, R. L. S. 1994. Disruption of virus. ࠆߦߪዉ౉ㆮવሶߦߟ޿ߡ৻ቯߩ㐳ߐ߇ᔅⷐߢ޽ࠆߎ. movement confers broad-spectrum resistance against. ߣࠍ␜ߒߚ㧚ᧄ⎇ⓥߢ↪޿ߚ TuMV-CP ㆮવሶߩ႐ว㧘. systemic infection by plant viruses with a triple gene. T2 ਎ઍߩㆊඨᢙ߇ᛶ᛫ᕈߣߥࠆ♽⛔ߩ₪ᓧല₸ߪో. block. Proc. Natl. Acad. Sci. USA 91:10310-10314.. 㐳 CP ㆮવሶ㧔864 bp㧕ࠍዉ౉ߒߚ႐วߪ 35 %ߢ޽ࠅ㧘. Carr, J. P., Marsh, L. E., Lomonossoff, G. P., Sekiya, M. E.,. ߘߩඨಽߩ㐳ߐߦ⋧ᒰߔࠆ CP3 ㆮવሶ’㧔430 bp㧕ߪല. and Zaitlin, M. 1992. Resistance to tobacco mosaic. ₸߇ૐ߆ߞߚ㧚ߎߩߎߣ߆ࠄන৻ߩㆮવሶࠍዉ౉ߒߡ. virus induced by the 54-kDa gene sequence requires. ࠙ࠗ࡞ࠬᛶ᛫ᕈᬀ‛ࠍ₪ᓧߔࠆߚ߼ߦߪዋߥߊߣ߽ో. expression. 㐳 CP ㆮવሶ㧔864 bp㧕⒟ᐲߩ㐳ߐࠍᜬߟㆮવሶࠍዉ౉. Plant-Microbe Interact. 5:397-404.. ᓟ㧘ㆬᛮߔࠆᣇ߇ല₸⊛ߢ޽ࠆ㧚. of. the. 54-kDa. protein.. Mol.. Cooper, B., Lapidot, M., Heick, J. A., Dodds, J. A., and. Nb-Tu-CP ߩࠨࠩࡦࡉࡠ࠶࠻⸃ᨆߩ⚿ᨐ㧘ᛶ᛫ᕈ♽⛔. Beachy, R. N. 1995. A defective movement protein. ߪ 2㨪4 ࠦࡇ࡯㧘ᗵฃᕈ♽⛔ߪ 1㨪2 ࠦࡇ࡯ߢ޽ࠅ㧘ᛶ. of TMV in transgenic plants confers resistance to. ᛫ᕈ♽⛔ߦߟ޿ߡߪ޿ߕࠇ߽ⶄᢙࠦࡇ࡯ߢ޽ߞߚ㧚ᛶ. multiple viruses whereas the functional analog. ᛫ᕈ♽⛔ߩ T1 ਎ઍߢߪᒻ⾰߇ಽ㔌ߔࠆ߇㧘ߘߩᰴ਎ઍ. increases susceptibility. Virology 206:307-313. ߢߪᒻ⾰߇ಽ㔌ߔࠆ߽ߩߣ㧘ోߡߩ୘૕߇ᛶ᛫ᕈࠍ␜. Ditta, G., Stanfield, S., Corbin, D., and Helinski, D. R.. ߔ߽ߩ߇ᓧࠄࠇ㧘ߐࠄߦᓟઍߦߟ޿ߡㆬᛮࠍ➅ࠅ㄰ߔ. 1980. Broad host range DNA cloning system for. ߎߣߦࠃࠅ቟ቯߒߡ TuMV ᛶ᛫ᕈࠍ␜ߔ♽⛔߇ᓧࠄࠇ. gram-negative bacteria: Construction of a gene bank. ߚ㧚TuMV-CP ߩઁ㧘CP3’㧘NIb3’෸߮ VPg ㆮવሶࠍዉ. of Rhizobium meliloti. Proc. Natl. Acad. Sci. USA. ౉ߒߚ N.benthamiana ߢ߽ 2 ࿁એ਄ߩ⥄ᱺߣㆬᛮߦࠃ. 77:7347-7351.. ࠅోߡߩ୘૕߇ᛶ᛫ᕈߣߥࠆ♽⛔߇ᓧࠄࠇ㧘ߘߩᓟઍ. Dougherty, W. G., Lindbo, J.A., Smith, H. A., Parks, T. D.,. ߢߪ TuMV ᛶ᛫ᕈ߇⛽ᜬߐࠇߡ޿ߚ㧚ߒߚ߇ߞߡ㧘ฦ. Swaney,. ⒳૞‛ߦ࠙ࠗ࡞ࠬㆮવሶࠍዉ౉ᓟ㧘RNA ࠨࠗ࡟ࡦࠪࡦ. RNA-mediated virus resistance in transgenic plants:. ࠣߦࠃࠅᛶ᛫ᕈࠍ␜ߔ♽⛔ࠍല₸⊛ߦ₪ᓧߔࠆߚ߼ߦ. exploitation of a cellular pathway possibly involved. ߪ⥄ᱺߢ߈ࠆ૞‛ߢߪ㧘ߘߩᓟઍ߆ࠄᛶ᛫ᕈ୘૕ࠍㆬ. in RNA degradation. Mol. Plant-Microbe Interact.. ᛮߔࠆߎߣߢ቟ቯߒߚ࠙ࠗ࡞ࠬᛶ᛫ᕈࠍ␜ߔ♽⛔߇ࠃ. 7:544-552.. ࠅല₸⊛ߦᓧࠄࠇࠆ߽ߩߣ⠨߃ࠄࠇࠆ㧚. Fuchs,. M.,. S.,. and. and. Proebsting,. Gonsalves,. D.. W.. 2008.. M.. 1994.. Safety. of. . virus-resistant transgenic plants two decades after. . their introduction: lessons from realistic field risk. ⻢  ㄉ ᧄ⎇ⓥࠍⴕ߁ߦ޽ߚࠅ㧘ߏᜰዉ޿ߚߛ޿ߚ᧲੩ᄢቇᄢ. assessment studies. Annu. Rev. Phytopathol 45: 173-202..

(10) 10. カブモザイクウイルス(TuMV)ゲノム由来の遺伝子を導入した Nicotiana benthamiana における TuMV 抵抗性 ࠞࡉࡕࠩࠗࠢ࠙ࠗ࡞ࠬ㧔6W/8㧕ࠥࡁࡓ↱᧪ߩㆮવሶࠍዉ౉ߒߚ 0KEQVKCPCDGPVJCOKCPC ߦ߅ߌࠆ 6W/8 ᛶ᛫ᕈ. Germundsson, A., and Valkonen, J. P. T. 2006. P1- and. resistance to plant virus disease. Adv. Virus Res.. VPg-transgenic plants show similar resistance to Potato virus A and may compromise long distance. 48:349-377. Pang, S-Z., Jan, F-J., and Gonsalves, D. 1997. Nontarget. movement of the virus in plant sections expressing. DNA sequences. RNA silencing-based resistance. Virus Research. necessary for RNA-mediated tospovirus resistance in. 116:208-213.. transgenic plants. Proc. Natl. Acad. Sci. USA. Hamilton, A. J., and Baulcombe, D. C. 1999. A species of small antisense RNA in posttranscriptional gene. reduce. the. transgene. length. 94:8261-8266. Prins, M., Laimer, M., Noris, E., Schubert, J., Wassenegger,. silencing in plants. Science 286:950-952.. M., Tepfer, M. 2008. Strategies for antiviral. Horsch, R. B., Fry, J. E., Hoffman, N. L., Eichholtz, D.,. resistance in transgenic plants. Mol. Plant. Pathol 9:. Rogers, S. G., and Fraley, R. T. 1985. A simple and general method for transferring genes into plants.. 73-83. Sijen, T., Wellink, J., Hiriart, J. B., and van Kammen, A.. Science 227:1229-1231.. 1996. RNA-mediated virus resistance: Role of. Jones, A. L., Johansen, I. E., Bean, S. J., Bach, I., and. repeated transgenes and delineation of targeted. Maule, A. J. 1998. Specificity of resistance to pea. regions. Plant Cell 8:2277-2294.. seed-borne mosaic potyvirus in transgenic peas. Swaney, S., Powers, H., Goodwin, J., Silva Rosales, L., and. expressing the viral replicase (NIb) gene. J. Gen.. Dougherty, W. G. 1995. RNA-mediated resistance. Virol. 79:3129-3137.. with. Lindbo, J. A., and Dougherty, W. G. 2005. Plant pathology. virus. and RNAi: a brief history. Annu. Rev. Phytopathol. 43:191-204.. nonstructural genes from the tobacco etch genome.. Mol.. Plant-Microbe. Interact.. 8:1004-1011. Tomlinson, J. A. 1987. Epidemiology and control of virus. Lomonossoff, G. P. 1995. Pathogen-derived resistance to. diseases of vegetables.. plant viruses. Annu. Rev. Phytopathol. 33:323-343.. Ann. Appl. Biol.. 110:661-681.. Maki-Valkama, T., Valkonen, J. P. T., Kreuze, J. F., and. Vaucheret, H., and Fagard, M. 2001. Transcriptional gene. O. silencing in plants: targets, inducers and regulators.. Pehu, E. 2000. Transgenic resistance to PVY. associated with post-transcriptional silencing of P1. Trends Genet. 17:29-35.. transgene is overcome by PVYN strains that carry highly homologous P1 sequences and recover transgene. expression. at. infection.. Mol.. Plant-Microbe Interact. 13:366-373. Moreno,. M.,. Bernal,. J.. J.,. Jimenez,. I.,. and. Rodriguez-Cerezo, E. 1998. Resistance in plants transformed with the P1 or P3 gene of tobacco vein mottling potyvirus. J. Gen. Virol. 79:2819-2827. Nomura, K., Ohshima, K., Anai, T., Uekusa, H., and Kita, N. 2004. RNA-silencing of the introduced coat protein gene of Turnip mosaic virus confers the broad spectrum resistance in transgenic Arabidopsis. Phytopathology 94:730-736. Palukaitis, P., and Zaitlin, M. 1997. Replicase-mediated. .

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