植物科学最前線 6:112 (2015)ⴥࡢพฝᙧែᙧᡂࡢไᚚᶵᵓᑠᒣ▱Ⴙබ┈㈈ᅋἲேࢧࣥࢺ࣮ࣜ⏕࿨⛉Ꮫ㈈ᅋ࣭⏕≀᭷ᶵ⛉Ꮫ◊✲ᡤࠛ ி㒔ᗓ┦ᴦ㒆⢭⳹⏫⢭⳹ྎ㸶㸫㸯㸫㸯

7RPRWVXJX.R\DPD%LRRUJDQLF5HVHDUFK,QVWLWXWH6XQWRU\)RXQGDWLRQIRU/LIH6FLHQFHV
6HLNDGDL6HLNDFKR6RUDNXJXQ.\RWR-DSDQ㸯㸬ࡣࡌࡵ࡟
᳜≀ࡢⴥࡣࡋࡤࡋࡤพฝᙧែࢆ᭷ࡋ㸪ࡑࡢࢧ࢖ࢬࡸ఩⨨㸪ᩘ࡞࡝ࡢ㐪࠸࡟ࡼࡾከᵝ࡞ᙧែࢆ♧ࡍࠋᅗ㸯ࡣ㸪⁥ࡽ࠿࡞⦕ᙧែࢆ᭷ࡍࡿ༢ⴥ࡜」㞧࡞พฝᙧែࢆ᭷ࡍࡿ」ⴥࡢ౛ࢆ♧ࡋ࡚࠸ࡿࠋ༢ⴥ࡛ࡣ㸪ࡋࡤࡋࡤ⦕࡟ᑠࡉ࡞พฝᙧែ࡛࠶ࡿ㗬ṑࢆᙧᡂࡍࡿ㸦ᅗ㸯$㸧
ࠋ」ⴥ࡛ࡣ㸪
ᑠࡉ࡞ⴥࡢࡼ࠺࡞ᵓ㐀㸦ᑠⴥ㸧ࡀ㞟ࡲࡗ୍࡚ࡘࡢⴥ࡜࡞ࡿ」㞧࡞พฝᙧែࢆ᭷ࡍࡿ㸦ᅗ㸯%㸧
ࠋྠ✀ྠ⣔⤫ࡢྠࡌᡂ㛗ࢫࢸ࣮ࢪ࡛࠶ࢀࡤ㸪ྛಶయࡣ㢮ఝࡋࡓⴥࢆᙧᡂࡍࡿࡢ࡛ࠊࡑࡢᙧែࡣ
ṇ☜࡟ไᚚࡉࢀ࡚࠸ࡿࡣࡎ࡛࠶ࡿࠋ࡜ࡇࢁࡀ㸪ྠ୍ࡢಶయࡀᗂⱑᮇ࡜ᡂ⇍ᮇ࡛พฝᙧែࡢ␗
࡞ࡿⴥࢆᙧᡂࡍࡿ౛ࡶከ࠸ ᅗ㸯&㸪3RHWKLJ ࠋࡲࡓ㸪⎔ቃኚ໬࡟ᛂࡌ࡚ⴥࡢพฝᙧែࡣ
ࡋࡤࡋࡤ኱ࡁࡃኚ᥮ࡉࢀࡿሙྜࡶ࠶ࡿ㸦1DND\DPDHWDO㸧ࠋእ᮶⏕≀ࡢ౵ධ࡟ࡼࡾ㸪ⴥࡢพฝᙧែࡀㄏᑟࡉࢀࡿࡇ࡜ࡶ▱ࡽࢀ࡚࠸ࡿ 6XJLR HW DO  ࠋࡉࡽ࡟㸪೺඲࡞⏕⫱᮲௳ୗ࡛ࡶഅⓎⓗ࡟ⴥࡢพฝᙧែ࡟ኚ໬ࡀ⏕ࡌ࡚ࡋࡲ࠸㸪࠶ࡓ࠿ࡶฟ᮶ᦆ࡞࠸ࡢࡼ࠺࡞ⴥࢆᙧᡂࡍࡿ
ࡇ࡜ࡶ࠶ࡿ㸦ᅗ '㸧ࠋࡇࡢࡼ࠺࡞౛࠿ࡽ㸪ⴥࡢᙧែᙧᡂࡣṇ☜࡟ไᚚࡉࢀࡿ࡜࡜ࡶ࡟㸪ከᵝ࡞ᙧែࢆⓎ⌧ࡉࡏࡿᰂ㌾ᛶࡶවࡡഛ࠼ࡓࡶࡢ࡜ゝ࠼ࡿࠋᮏ✏࡛ࡣ㸪ࡲࡎ㸪ⴥࡢⓎ⏕ࡢᴫほ࡜ࡑࡢพฝᙧែࡢᙧᡂ࡟࠾ࡅࡿศᏊ࡛ࣞ࣋ࣝࡢᯟ⤌ࡳ࡟ࡘ࠸࡚⤂௓ࡍࡿࠋḟ࡟㸪ⴥࡢพฝᙧែᙧᡂࡢไᚚ࡟㔜せ࡞ᙺ๭ࢆᯝࡓࡍ 7&3 ㌿෗ᅉᏊࡢᶵ⬟ࢆ㉳Ⅼ࡜ࡋ࡚㸪༢ⴥࡸ」ⴥ࡛࡝ࡢࡼ࠺࡞ไᚚࡀ⾜ࢃࢀ࡚࠸ࡿࡢ࠿ࢆ㏙࡭ࡿࠋᮏ✏ࢆ㏻ࡌ࡚㸪ⴥࡢพฝᙧែᙧᡂ࡟࠾ࡅࡿ㡹೺࠿ࡘᰂ㌾࡞ไᚚ⣔ࡢ୍➃ࢆ⤂௓ࡋࡓ࠸ࠋ
㸰㸬ⴥࡢᙧែᙧᡂࡢᴫほⴥࡢᙧែ࡟㛵ࢃࡽࡎ㸪඲࡚ࡢⴥࡣᖿ⣽⬊ࢆྵࡴ⣽⬊㞟ᅋ㸦ࢩ࣮ࣗࢺ࣓ࣜࢫࢸ࣒㸧࠿ࡽ⏕ࡌࡿ㸦ᅗ㸯(㸧ࠋࢩ࣮ࣗࢺ࣓ࣜࢫࢸ࣒࠿ࡽⴥཎᇶࢆᙧᡂࡍࡿ㐣⛬࡛㸪ࢩ࣮ࣗࢺ࣓ࣜࢫࢸ࣒ࢆ⥔ᣢࡍࡿ㑇ఏᏊࡢⓎ⌧ࡀᢚไࡉࢀࡿ࡜࡜ࡶ࡟㸪᪂ࡓ࡟☜❧ࡉࢀࡓ㍈᝟ሗ࡟ᚑࡗ࡚⣽⬊ศ⿣࡜ఙ㛗ࡢ᪉ྥࡀไᚚࡉࢀࡿ 1DNDWD  2NDGD  7DPHVKLJH HW DO  %DU  2UL  7VXND\D ࠋⴥཎᇶෆ࡛ࡣⓎ⏕࡟కࡗ࡚ᚎࠎ࡟⣽⬊ศ⿣ࡀ೵Ṇࡍࡿ࡜࡜ࡶ࡟⣽⬊ఙ㛗ࡀ㛤ጞࡉࢀࡿࡀ㸪࿘⦕㒊࡛ࡣศ⿣άᛶࡀ㛗ᮇ㛫࡟ࢃࡓࡾ⥔ᣢࡉࢀ㸪พฝᙧែࢆᙧᡂࡍࡿ⬟ຊࢆᣢࡘ㡿ᇦ࡜࡞ࡿ +DJHPDQQ *OHLVVEHUJ'RQQHOO\HWDO$QGULDQNDMDHWDO ࠋࢩࣟ࢖ࢾࢼࢬࢼ
ࡢ㗬ṑࡢᙧᡂ࡟࠾࠸࡚㸪࿘⦕㒊≉␗ⓗ࡞⣽⬊ศ⿣࡜ఙ㛗ࡀほᐹࡉࢀ㸪พฝᙧែᙧᡂࡢ㐣⛬ࡀ
7.R\DPD
BSJ-Review 6:112 (2015)

植物科学最前線 6:113 (2015)㏣㊧ࡉࢀ࡚࠸ࡿ .DZDPXUDHWDO ࠋࡲࡓ㸪ఙ㛗୰ࡢⴥࡢ࿘⦕㒊ࡢ୍㒊ศ࡟㝈ࡗ࡚ேⅭⓗ࡟⣽⬊ศ⿣ࢆಁ㐍ࡉࡏࡓሙྜ㸪ᙧᡂࡉࢀࡓⴥ࡟ࡣ኱ࡁ࡞พฝᙧែࡀ⏕ࡌࡿ :\U]\NRZVNDHWDO
 ࠋ
࡜ࡇࢁࡀ㸪ⴥ඲య࡛⣽⬊ศ⿣ࢆಁ㐍ࡋ࡚ࡶⴥࡢᙧែࡣኚࢃࡽ࡞࠸ &RFNFURIWHWDO ࠋⴥ࡟พฝᙧែࢆᙧᡂࡍࡿࡓࡵ࡟ࡣ㸪༢࡞ࡿ⣽⬊ศ⿣ࡢไᚚ࡛ࡣ࡞ࡃ㸪ศ⿣ྍ⬟࡞㡿ᇦࡀ࿘⦕㒊ࡢᒁᡤ࡟೫ᅾࡍࡿࡇ࡜ࡀ㔜せ࡜ᣦ᦬ࡉࢀ࡚࠸ࡿ :\U]\NRZVNDHWDO ࠋࡇࡢࡼ࠺࡞೫ᅾ
ࢆ⏕ࡌࡿࡓࡵࡢศᏊᶵᵓࢆ⌮ゎࡍࡿࡓࡵ࡟ࡣ㸪ࢩࣟ࢖ࢾࢼࢬࢼ࡞࡝࡛ⴥࡢพฝᙧែ࡟␗ᖖࢆ
♧ࡍኚ␗య࠿ࡽᚓࡽࢀࡿ▱ぢࡣ᭷ຠ࡛࠶ࡿࠋࡇࢀࡽኚ␗యࡢཎᅉ㑇ఏᏊࡢ୰࡟ࡣ㸪ࢤࣀ࣒'1$ ௦ㅰ࡜ᵓ㐀ไᚚ 7DNDKDVKLHWDO(QJHOKRUQHWDO 㸪51$ ௦ㅰ $OOHQHWDO
1HOLVVHQHWDO+XQWHUHWDO/DXELQJHUHWDO*UHJRU\HWDO=KDQHWDO
.RXJLRXPRXW]LHWDO  㸪⩻ヂ࡜⩻ヂᚋಟ㣭 %\UQH0RVFKRSRXORVHWDO+RULJXFKLHWDO  ࡢ㐣⛬࡛ᶵ⬟ࡍࡿࡶࡢ࡛࠶ࡗࡓࠋࡇࢀࡽࡢไᚚࡢ඲ᐜゎ᫂࡟ࡣ⮳ࡗ࡚࠸࡞࠸ࡀ㸪
ᚋ㏙ࡍࡿ࣮࢜࢟ࢩࣥᛂ⟅ࡢไᚚ㑇ఏᏊࡸ㌿෗ᅉᏊ࡞࡝พฝᙧែࡢไᚚᅉᏊࢆㄪ⠇ࡋ࡚࠸ࡿྍ
⬟ᛶࡀ㧗࠸ 2ULHWDO)DKOJUHQHWDO6]DNRQ\L %\UQH5RVDGRHWDO ࠋ㸱㸬ⴥࡢพฝᙧែᙧᡂ࡟࠾ࡅࡿ࣮࢜࢟ࢩࣥ࡜ &8& 㑇ఏᏊࡢᙺ๭
ⴥࡢพฝᙧែᙧᡂࢆ⌮ゎࡍࡿ࠺࠼࡛㸪࣮࢜࢟ࢩࣥࡢ⏕ྜᡂ࡜㍺㏦ᶵᵓ㸪᝟ሗࡢཷᐜ࡜ఏ㐩࡟␗ᖖࢆ♧ࡍࢩࣟ࢖ࢾࢼࢬࢼኚ␗యࡣ㔜せ࡞ᮦᩱ࡜࡞ࡗ࡚࠸ࡿࠋ࣮࢜࢟ࢩࣥ᝟ሗఏ㐩ࡀάᛶ
7.R\DPD
BSJ-Review 6:113 (2015)

植物科学最前線 6:114 (2015)໬ࡉࢀ࡚࠸ࡿ㒊఩ࡣ㸪࣮࢜࢟ࢩࣥᛂ⟅ᛶ㑇ఏᏊࡢࣉ࣮ࣟࣔࢱ࣮࠿ࡽྠᐃࡉࢀࡓ '5 ࢚࣓ࣞࣥࢺࡢ࣏࣮ࣞࢱ࣮࡛ྍど໬ࡍࡿࡇ࡜ࡀ࡛ࡁࡿ 8OPDVRYHWDO ࠋ'5 ࢚࣓ࣞࣥࢺࢆᑟධࡋࡓ
ᙧ㉁㌿᥮యࡢゎᯒ࠿ࡽ㸪࣮࢜࢟ࢩࣥᛂ⟅ࡀ㗬ṑࡢ㡬➃㒊࡛άᛶ໬ࡉࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡛࠶ࡿ
㸦ᅗ㸰㸧ࠋࡉࡽ࡟㸪࣮࢜࢟ࢩࣥᒁᅾ࡟ᚲせ࡞㍺㏦ࢱࣥࣃࢡ㉁㑇ఏᏊࡢኚ␗య࡜࣮࢜࢟ࢩࣥᛂ⟅ࢆไᚚࡍࡿ㌿෗ᅉᏊ㑇ఏᏊࡢኚ␗య࡛ࡣ㗬ṑࡀᙧᡂࡉࢀ࡞࠸ࡢ࡛㸪พฝ㡬➃㒊࡟࠾ࡅࡿ࣮࢜
࢟ࢩࣥᛂ⟅ࡀ㗬ṑࡢᙧᡂ࡟ᚲ㡲࡛࠶ࡿ +D\ HW DO  .RHQLJ HW DO  .DZDPXUD HW DO ࠋ
㗬ṑࡢᇶ㒊࡛ࡣ㸪1$& ࢻ࣓࢖ࣥ㌿෗ᅉ Ꮚ ࢆ ࢥ ࣮ ࢻ ࡍ ࡿ CUP-SHAPEDCOTYLEDON (CUC) 㑇ఏᏊࣇ࢓࣑࣮ࣜ
ࡀ≉␗ⓗ࡟Ⓨ⌧ࡋ㸪㗬ṑࡢᇶ㒊࡟ࠕࡃࡧࢀࠖࢆᙧᡂࡍࡿ ᅗ㸰 ࠋࢩࣟ࢖ࢾࢼࢬࢼ
࡛ࡣ CUC 㑇ఏᏊࡣ  㑇ఏᏊ࠿ࡽ࡞ࡿࣇ
࢓࣑࣮ࣜࢆᙧᡂࡋ㸪ⴥࡢ㗬ṑᙧᡂ࡛ࡣ
CUC2 ࡜ CUC3 ࡀ ኱ࡁ ࡞ᙺ ๭ࢆᢸ ࠺
1LNRYLFVHWDO+DVVRQHWDO ࠋ
CUC2 P51$ ࡣ PLFUR51$ PL5
࡟ࡼࡾศゎࡉࢀ㸪㌿෗ᚋࡢ㈇ࡢไᚚࢆཷࡅࡿࠋCUC2 ࡜ PL5 ࡜ࡢࣂࣛࣥࢫࡣ
㗬ṑࡢࢧ࢖ࢬࡢไᚚ࡟㔜せ࡛㸪PL5 ࡢไᚚࢆཷࡅ࡞࠸ሷᇶ⨨᥮ࢆᑟධࡋࡓኚ␗ CUC2 㑇ఏᏊ㐣๫Ⓨ⌧యࡸ mir164a ኚ␗య࡛ࡣ኱ࡁࡃࡃࡧࢀࡓ㗬ṑࢆᙧᡂࡋ㸪㏫࡟㐣๫࡞ MIR164A 㑇ఏᏊࡢⓎ⌧ࡸ cuc2 ኚ␗యࡣ㗬ṑࡢᙧᡂࡀ㜼ᐖࡉࢀࡿࠋࡲࡓ㸪CUC3 ࡣ PL5 ࡢไᚚࡣཷࡅ࡞
࠸ࡀ㸪CUC2 ࡜ᶵ⬟㔜」ࡋ࡚㗬ṑࡢᙧᡂࢆಁ㐍ࡍࡿࠋ⯆࿡῝࠸ࡇ࡜࡟㸪㗬ṑࡢ㡬➃㒊࡜ᇶ㒊࡛ࡑࢀࡒࢀάᛶ໬ࡉࢀ࡚࠸ࡿ࣮࢜࢟ࢩࣥ࡜ CUC 㑇ఏᏊࡣ┦஫స⏝ࢆ♧ࡍ ᅗ㸰㸪%LOVERURXJKHWDO ࠋ࣮࢜࢟ࢩࣥᢞ୚ࡣ CUC2 㑇ఏᏊࡢⓎ⌧ࢆᢚไࡍࡿࡀ㸪㏫࡟࣮࢜࢟ࢩࣥᛂ⟅࡟␗ᖖࢆ♧ࡍኚ␗య࡛ࡣ CUC2 㑇ఏᏊࡢⓎ⌧㡿ᇦࡀᣑ኱ࡋ㸪ࡑࡢⓎ⌧㔞ࡶቑຍࡍࡿࠋ୍᪉㸪cuc2 ኚ␗య࡛ࡣ࣮࢜࢟ࢩࣥࡢᴟᛶ㍺㏦ࡀ㜼ᐖࡉࢀ࡚㗬ṑࡢᙧᡂࡀ㜼ᐖࡉࢀࡿࡀ㸪mir164a ኚ␗య࡛ㄆࡵࡽࢀࡿ㗬ṑࡢᣑ኱ࡣ࣮࢜࢟ࢩࣥࡢᴟᛶ㍺㏦ࢆ㜼ᐖࡍࡿ࡜ᢚᅽࡉࢀࡿ .DZDPXUDHWDO%LOVERURXJKHWDO ࠋࡇࡢࡼ࠺࡞ࣇ࢕࣮ࢻࣂࢵ
ࢡ࣮ࣝࣉࡀ⥔ᣢࡉࢀ࡚พฝᙧែࡀᙉㄪࡉࢀࡓ⤖ᯝ㸪㗬ṑࡀᙧᡂࡉࢀࡿࠋࡇࢀࡽࡢ▱ぢ࡟ຍ࠼࡚㸪ⴥࡢพฝᙧែ࡟␗ᖖࢆ♧ࡍከࡃࡢࢩࣟ࢖ࢾࢼࢬࢼኚ␗య࡛㸪࣮࢜࢟ࢩࣥᛂ⟅ࡸ CUC 㑇ఏᏊⓎ⌧ࣃࢱ࣮ࣥ࡟␗ᖖࡀㄆࡵࡽࢀࡿ %DU 2UL ࠋୖグࡢࢩࣟ࢖ࢾࢼࢬࢼࡢ㗬ṑࡢᙧᡂᶵᵓࡣ㸪ࢺ࣐ࢺࡸ࣑ࢳࢱࢿࢶࢣࣂࢼ࡞࡝ࡢ」ⴥ࡟࠾ࡅ
ࡿพฝᙧែࡢᙧᡂ࡟ࡶㄆࡵࡽࢀࡿࠋࡇࢀࡽࡢ」ⴥ࡛ࡣᑠⴥཎᇶࡀⴥཎᇶෆ࡟ᙧᡂࡉࢀࡿࡀ㸪ᑠⴥཎᇶࡢඛ➃㒊࡟࠾࠸࡚࣮࢜࢟ࢩࣥάᛶࡀάᛶ໬ࡉࢀࡿࠋࡋ࠿ࡋ㸪࣮࢜࢟ࢩࣥᴟᛶ㍺㏦ࡀ
㜼ᐖࡉࢀࡓኚ␗యࡸ⸆๣ฎ⌮࡟ࡼࡾ㸪ᑠⴥࡸ㗬ṑࡢᙧᡂࡣ㜼ᐖࡉࢀࡿ +D\

 7VLDQWLV 

.RHQLJ HW DO  ࠋ୍᪉㸪ࢺ࣐ࢺ CUC2 ࣍ࣔࣟࢢ GOBLET (GOB)㑇ఏᏊࡣᑠⴥཎᇶࡢᇶ㒊࡛Ⓨ⌧ࡋ㸪ᑠⴥࡢᙧᡂ࡟ᚲせ࡛࠶ࡿࠋGOB ࡀ PL5 ࡟ไᚚࡉࢀࡿࡇ࡜࡜㸪࣮࢜࢟ࢩࣥ࡜ GOB
7.R\DPD
BSJ-Review 6:114 (2015)

植物科学最前線 6:115 (2015)ࡀࣇ࢕࣮ࢻࣂࢵࢡࢆᙧᡂࡍࡿࡇ࡜ࡶ᫂ࡽ࠿࡛࠶ࡿ %OHLQ HW DO  %HUJHU HW DO 
%HQ*HUDHWDO ࠋࡉࡽ࡟㸪ⴥࡢพฝᙧែ࡟␗ᖖࢆ♧ࡍࢺ࣐ࢺኚ␗య࡛ࡣ࣮࢜࢟ࢩࣥᛂ⟅࠶
ࡿ࠸ࡣ CUC 㑇ఏᏊࡢⓎ⌧ࣃࢱ࣮ࣥࡢ␗ᖖࡀሗ࿌ࡉࢀ࡚࠸ࡿ 'DYLG6FKZDUW]HWDO1D]HW
DO  ࠋࡇࡢࡼ࠺࡟㸪พฝᙧែࡢ㡬➃㒊࡛࣮࢜࢟ࢩࣥᛂ⟅ࡀάᛶ໬ࡉࢀ㸪ࡑࡢᇶ㒊࡛ CUC
㑇ఏᏊࡀⓎ⌧ࡍࡿไᚚᶵᵓࡀ㸪༢ⴥ࡛ࡶ」ⴥ࡛ࡶඹ㏻࡟ㄆࡵࡽࢀࡿࠋ
ࡑࢀ࡛ࡣ㸪࣮࢜࢟ࢩࣥᛂ⟅ࡸ CUC 㑇ఏᏊࡢⓎ⌧ࢆ㐺ษ࡞㡿ᇦ࡛άᛶ໬ࡍࡿᶵᵓ࡜ࡣ࡝ࡢ
ࡼ࠺࡞ࡶࡢࡔࢁ࠺࠿㸽ࢩࣟ࢖ࢾࢼࢬࢼ࡜ࢺ࣐ࢺࡢⴥ࡟࠾࠸࡚㸪พฝᙧែࢆ኱ࡁࡃኚ໬ࡉࡏࡿ
.12; ㌿෗ᅉᏊࡸ 7&3 ㌿෗ᅉᏊࡣ㔜せ࡞ไᚚᅉᏊ࡛࠶ࡿࠋKNOX 㑇ఏᏊࡣ࣮࢜࢟ࢩࣥᛂ⟅ࡸ
CUC 㑇ఏᏊ⩌ࡢⓎ⌧ㄏᑟࢆకࡗ࡚㸪พฝᙧែࡢᙧᡂࢆಁ㐍ࡍࡿࡇ࡜࡞࡝ࡀ᫂ࡽ࠿࡛࠶ࡿ +D\
HW DO  6SLQHOOL HW DO  ࠋᮏ✏࡛ࡣ㸪.12; ㌿෗ᅉᏊ࡟ࡘ࠸࡚ࡢ⥲ㄝࢆ⤂௓ࡍࡿ࡟␃ࡵ
+D\ 7VLDQWLV㸪ᮌᮧ  㸪௨㝆ࡣ 7&3 ㌿෗ᅉᏊࡢᶵ⬟࡟ࡘ࠸࡚↔Ⅼࢆ⤠ࡿࠋ

㸲㸬7&3 ㌿෗ᅉᏊ࡟ࡼࡿพฝᙧែᙧᡂࡢไᚚ
ⴥࡢพฝᙧែᙧᡂ࡟࠾࠸࡚㸪7&3 ㌿෗ᅉᏊࣇ࢓࣑࣮ࣜࡣ㔜せ࡛࠶ࡿࠋ7&3 ࡣ᳜≀≉␗ⓗ㌿෗ᅉᏊ࡛㸪ࢩࣟ࢖ࢾࢼࢬࢼࢤࣀ࣒࡛ࡣ 㑇ఏᏊ࡟ࢥ࣮ࢻࡉࢀ࡚࠸ࡿࠋࡑࢀࡒࢀࡢ
7&3 ࡣಖᏑ㡿ᇦࡢ࢔࣑ࣀ㓟㓄ิ┦ྠᛶ࡟ࡼࡾ㸪ࢡࣛࢫ , ࡜ &,1&,11$7$ &,1 OLNH㸪
&<&7% ࡢࢧࣈࢢ࣮ࣝࣉ࡟ศ㢮ࡉࢀ࡚࠸ࡿ
ᅗ㸱㸪0DUWLQ7ULOOR &XEDV ࠋ 㑇ఏᏊ࠿ࡽ࡞ࡽ CINOLNH TCP 㑇ఏᏊࡢ୰ࡢ  㑇ఏᏊ ࡣ PL5 ࡟ ࡼ ࡿ ㈇ ࡢ ไ ᚚ ࢆ ཷ ࡅ ࡿ
3DODWQLN HW DO  ࠋ࢟ࣥࢠࣙࢯ࢘ cin ኚ␗యࡢゎᯒ࠿ࡽ㸪CIN ࡣⴥ࡟࠾ࡅࡿ⣽⬊ศ⿣ࡢᢚไᅉᏊ࡜ࡋ࡚ศ⿣ࡢ೵Ṇ㡿ᇦࢆつᐃࡍࡿࡇ࡜࡟ࡼࡾ㸪ⴥࡢ⁥ࡽ࠿࡞ᖹ㠃ࢆᙧᡂࡍࡿ࡜
ᥦ᱌ࡉࢀࡓࡀ 1DWKHWDO 㸪ࢩࣟ࢖ࢾࢼ
ࢬࢼ࡟࠾ࡅࡿᶵ⬟ࡣ୙࡛᫂࠶ࡗࡓࠋ
➹⪅ࡽࡣ㸪㌿෗ᅉᏊࢆࢻ࣑ࢼࣥࢺࢿ࢞ࢸ࢕ࣈ࡟㜼ᐖࡍࡿ 65'; 㓄ิࢆ฼⏝ࡋࡓ &5(67 ἲ+LUDWVXHWDO.R\DPDHWDO 㸪࡞ࡽࡧ࡟ከ㔜ኚ␗యࢆ⏝࠸ࡓゎᯒ࠿ࡽ㸪&,1OLNH7&3㌿෗ᅉᏊࡀⴥࡢᙧែࡢ」㞧ࡉࢆไᚚࡍࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓ ᅗ㸲㸪.R\DPDHWDO ࠋ
CINOLNH TCP 㑇ఏᏊ◚ቯᰴ࡛ࡣ୍㑇ఏᏊ◚ቯ࡛ࡣ⾲⌧ᆺ␗ᖖࡣㄆࡵࡽࢀ࡞࠸ࡀ㸪ከ㔜ኚ␗య࡛ࡣᢚไࡉࢀࡓ TCP 㑇ఏᏊࡢᩘ࡟ᛂࡌ࡚ⴥࡀ⦰ࢀࡓࠋࡇࢀࡽࡢᙧែ␗ᖖࡣ PL5 ࢆ㐣๫࡟⵳✚ࡍࡿࢩࣟ࢖ࢾࢼࢬࢼ jaw-d ኚ␗య࡟࠾ࡅࡿⴥࡢἼᡴࡕᙧែ࡜ఝࡓ㸪࠶ࡿ࠸ࡣᙉㄪࡉࢀࡓ
ᙧែ࡛࠶ࡗࡓ 3DODWQLNHWDO ࠋ୍᪉㸪PL5 ࡢᶆⓗ㓄ิ࡟ኚ␗ࢆᑟධࡋ 7&3 ࢆ㐣๫࡟⵳✚ࡍࡿ mTCP3 㑇ఏᏊⓎ⌧య࡛ࡣ㸪㗬ṑࡢᙧᡂࡀ㜼ᐖࡉࢀ㸪⁥ࡽ࠿࡞⦕ࡀᙧᡂࡉࢀࡓࠋࡉࡽ
࡟㸪CINOLNHTCP 㑇ఏᏊࡢⓎ⌧㔞ࡀቑຍࡋࡓ mir319a ኚ␗యࡢⴥ࡟࠾࠸࡚㗬ṑࡢᙧᡂࡀ㜼ᐖࡉ
7.R\DPD
BSJ-Review 6:115 (2015)

植物科学最前線 6:116 (2015)ࢀࡓࡇ࡜࠿ࡽ㸪TCP3 ࢆྵࡴ CINOLNHTCP 㑇ఏᏊࡢ㐣๫Ⓨ⌧ࡣ⁥ࡽ࠿࡞⦕ᙧែࢆ⏕ࡌࡿࡇ࡜ࡀ
᫂ࡽ࠿࡟࡞ࡗࡓࠋ⯆࿡῝࠸ࡇ࡜࡟㸪㸵ࡘࡢ CINOLNHTCP 㑇ఏᏊࢆ㜼ᐖࡋࡓኚ␗య࡛ࡣⴥୖ୙ᐃⱆࡀᙧᡂࡉࢀ㸪࣓ࣜࢫࢸ࣒ࡀ㐣๫࡟ᙧᡂࡉࢀࡿ⾲⌧ᆺࢆ♧ࡋࡓ ᅗ㸲㸪.R\DPDHWDO ࠋ㏫࡟㸪mTCP3
࡜ mTCP4 ࡢ㐣๫Ⓨ⌧యࡢᙉ࠸⾲⌧ᆺ࡛ࡣᏊⴥࡀ⼥ྜࡋ㸪ࢩ࣮ࣗࢺ࣓ࣜࢫࢸ࣒ࡢᙧᡂࡀ㜼ᐖࡉ
ࢀࡓ 3DODWQLNHWDO.R\DPDHWDO ࠋᴟ➃࡟ 7&3 ㌿෗ᅉᏊࡢάᛶࡀప࠸࡜ࢩ࣮ࣗࢺ࣓
ࣜࢫࢸ࣒ᙧᡂࡀಁ㐍ࡉࢀ㸪ᴟ➃࡟ 7&3 άᛶࡀ㧗࠸࡜ࡑࡢᙧᡂࡀ㜼ᐖࡉࢀ㸪࡝ࡕࡽࡢ⾲⌧ᆺࡶ⮴Ṛⓗ࡛࠶ࡗࡓࠋ௬࡟㸪୍㑇ఏᏊ࡟ࡼࡿ༢⣧࡞ไᚚࢆ᝿ᐃࡍࡿ࡜㸪㐣๫Ⓨ⌧࡛ࡶ㑇ఏᏊ◚ቯ࡛ࡶ⮴Ṛ࡜࡞ࡾ㸪ከᵝ࡞⾲⌧ᆺࡀⓎ⌧ࡉࢀࡿྍ⬟ᛶࡣ࡞࠸ࠋࡘࡲࡾ㸪CINOLNH TCP 㑇ఏᏊࡢᗄ㔜࡟ࡶࢃࡓࡿᶵ⬟㔜」ࡣ㸪ⴥࡢᙧែᙧᡂ࡟㡹೺ᛶࢆ୚࠼ࡿ࡜࡜ࡶ࡟㸪ᙧែࡢከᵝᛶⓎ⌧ࡢᇶ┙࡜࡞ࡿไᚚ⣔࡜⪃࠼ࡽࢀࡓࠋ
ࡉࡽ࡟㸪➹⪅ࡽࡣ 7&3 ㌿෗ᅉᏊࡢୗὶ㑇ఏᏊࡢⓎ⌧ゎᯒࢆ⾜ࡗࡓࠋࡲࡎ㸪7&3 ㌿෗ᅉᏊ࡟㛵㐃ࡍࡿᙧែ␗ᖖࡀ CUC 㑇ఏᏊ࡟㛵㐃ࡍࡿኚ␗యࡢᙧែ␗ᖖ࡜ఝ࡚࠸ࡿࡢ࡛㸪CUC 㑇ఏᏊࡢⓎ⌧ゎᯒࢆ⾜ࡗࡓ࡜ࡇࢁ㸪7&3 ㌿෗ᅉᏊࡢᶵ⬟㜼ᐖࡀ CUC 㑇ఏᏊࣇ࢓࣑࣮ࣜࡢ␗ᡤⓎ⌧ࢆ♧ࡋ㸪㏫࡟ P7&3 ࡟ࡼࡾ CUC 㑇ఏᏊࣇ࢓࣑࣮ࣜࡢⓎ⌧ࡀᢚไࡉࢀࡿࡇ࡜ࢆぢฟࡋࡓ ᅗ
㸳㸿㸪.R\DPDHWDO ࠋḟ࡟㸪࣐࢖ࢡࣟ࢔ࣞ࢖࡜ࢡ࣐ࣟࢳࣥච␿ỿ㝆㸪ࣉ࣮ࣟࣔࢱ࣮ゎᯒ࠿ࡽ㸪7&3 ࡀ ASYMMETRIC LEAVES1 (AS1)࡜ MIR164A㸪SAUR㸪IAA3/SHY2 㑇ఏᏊࢆάᛶ໬
ࡍࡿࡇ࡜࡜㸪ࡇࢀࡽࡢᶆⓗ㑇ఏᏊࡀ㒊ศⓗ࡟ CUC 㑇ఏᏊࡢⓎ⌧ࢆᢚไࡍࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋ
ࡓ .R\DPDHWDO ࠋAS1 㑇ఏᏊࡣⴥࡢพฝᙧែᙧᡂࢆไᚚࡍࡿ 0<% ᵝ㌿෗ᅉᏊࢆࢥ࣮ࢻ
ࡋ㸪PL5 ࡣ CUC2 㑇ఏᏊࡢⓎ⌧ࢆ㜼ᐖࡍࡿࠋSAUR ࡜ IAA3/SHY2 ࡣ࣮࢜࢟ࢩࣥᛂ⟅ࢆᢚไࡍࡿᶵ⬟ࢆᣢࡘࠋP7&3 ࢆ㐣๫Ⓨ⌧ࡍࡿ᳜≀ࡣ࣮࢜࢟ࢩࣥ࡬ࡢឤཷᛶࡀపࡃ࡞ࡿࡀ㸪
7&365'; ᳜≀࡛ࡣ␗ᡤⓗ࡟࣮࢜࢟ࢩࣥᛂ⟅ࡀㄏᑟࡉࢀࡿࡢ࡛㸪7&3 ㌿෗ᅉᏊࡣ࣮࢜࢟ࢩࣥ
ᛂ⟅ࢆ㜼ᐖࡍࡿ࡜⪃࠼ࡽࢀࡿࠋࡇࡢࡼ࠺࡟㸪&,17&3 ㌿෗ᅉᏊࡣ෕㛗࠿ࡘከᒙ࡞ไᚚ⣔ࡢ㉳
Ⅼ࡜࡞ࡾ㸪พฝᙧែᙧᡂࡢ㘽࡛࠶ࡿ࣮࢜࢟ࢩࣥᛂ⟅࡜ CUC 㑇ఏᏊࢆᢚไࡍࡿไᚚᶵᵓࡀゎ᫂
7.R\DPD
BSJ-Review 6:116 (2015)

植物科学最前線 6:117 (2015)ࡉࢀࡓ㸦ᅗ㸳㸿㸪.R\DPDHWDO㸪ᑠᒣ 㸧ࠋୖグࡢ➹⪅ࡽࡢⓎぢ࡟ຍ࠼࡚㸪ࢩࣟ࢖ࢾࢼࢬࢼ &,1OLNH7&3 ࡢάᛶไᚚࡀሗ࿌ࡉࢀ࡚࠸ࡿ㸦ᅗ㸳
㸿㸧ࠋCINOLNHTCP 㑇ఏᏊࡢⓎ⌧ࡣ㸪ⴥ ࡢ ᙧ ែ ᙧ ᡂ ࡟ 㔜 せ ࡞
INDOLE-ACETIC-ACID
CARBOXYLMETHYLTRANSFERASE 㑇ఏᏊ㸪YABBY 㑇ఏᏊ㸪࣑ࢺࢥࣥࢻࣜ࢔
$73 ྜᡂ㓝⣲ࢧࣈࢽࢵࢺ㑇ఏᏊ࡟ࡼࡗ࡚ㄪ⠇ࡉࢀࡿ 4LQ HW DO5RELQVRQHWDO6DURMDPHW DO  ࠋࡉࡽ࡟㸪7&3 ㌿෗ᅉᏊࡢ⩻ヂᚋㄪ⠇࡟ࡼࡿพฝᙧែ
ࡢไᚚࡶሗ࿌ࡉࢀ࡚࠸ࡿࠋ
&,1OLNH7&3 ࡣ㌿෗ᢚไᅉᏊ࡜┦஫స⏝ࡋ㸪ᙜᅉᏊ࡟ࡼࡿ㜼ᐖⓗ࡞ㄪ⠇ࢆཷࡅࡿ 7DR HW DO  ࠋ
7&3 ࡣ࣮࢜࢟ࢩࣥస⏝ࢆ㜼ᐖࡍࡿࣇࣛ࣎ࣀ࢖ࢻࢆ௓ࡋࡓไᚚࢆ⾜࠺ /L =DFKJR  ࠋࡲࡓ㸪7&3 ࡣࢡ࣐ࣟࢳࣥࣜࣔࢹࣜࣥࢢᅉᏊ࡜┦஫స⏝ࡋ㸪ࢧ࢖ࢺ࢝࢖ࢽࣥᛂ⟅ᢚไᅉᏊ㑇ఏᏊࡢⓎ⌧ࢆάᛶ໬ࡍࡿ (IURQLHWDO ࠋ⯆࿡῝࠸ࡇ࡜࡟㸪7&3
ࡀ &8& ࡜ &8& ࡜┦஫స⏝ࡋ㸪⩻ヂᚋ࡛ࣞ࣋ࣝ &8& ㌿෗ᅉᏊࡢᶵ⬟ࢆ㜼ᐖࡍࡿྍ⬟ᛶࡶᣦ᦬ࡉࢀ࡚࠸ࡿ 5XELR6RPR]DHWDO ࠋ୍᪉㸪7&3 ࡣࢪ࣋ࣞࣜࣥࡸࢪࣕࢫࣔࣥ㓟ࡢ⏕ྜᡂࢆಁ㐍ࡍࡿ࡜࡜ࡶ࡟㸪⣽⬊ศ⿣ᢚไᅉᏊࡢⓎ⌧ࢆάᛶ໬ࡍࡿ 6FKRPPHU HW DO  
6DUYHSDOOL 1DWK ࠋࡇࡢࡼ࠺࡟㸪&,1OLNH7&3 ㌿෗ᅉᏊࡣ㌿෗㸪㌿෗ᚋ㸪⩻ヂᚋࡢྛࣞ࣋
࡛ࣝㄪ⠇ࡉࢀ㸪ᵝࠎ࡞ୗὶ㑇ఏᏊࡢⓎ⌧ไᚚࢆ௓ࡋ࡚ⴥࡢพฝᙧែࢆᙧᡂࡍࡿࠋ
㸳㸬」ⴥ࡟࠾ࡅࡿ 7&3 ㌿෗ᅉᏊࡢᙺ๭
ୖ㏙ࡢࡼ࠺࡞ࢩࣟ࢖ࢾࢼࢬࢼ &,1OLNH7&3 ㌿෗ᅉᏊ࡟ࡼࡿพฝᙧែࡢᙧᡂ࡟ࡘ࠸࡚㸪」ᩘ
ࡢ᳜≀✀࡛ඹ㏻࡞ไᚚ⣔ࡀᣦ᦬ࡉࢀ࡚࠸ࡿࠋ&5(67 ࡟ࡼࡿ㌿෗ᅉᏊࡢᶵ⬟㜼ᐖࢆ฼⏝ࡋ࡚ᅬⱁⓗ౯್ࢆ௜୚ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠕⰼࡁ &5(67 ࣉࣟࢪ࢙ࢡࢺ࡛ࠖࡣ 2KWVXER  㸪&,1OLNH 7&3 ㌿෗ᅉᏊࢆ 65'; 㓄ิ࡟⼥ྜࡋࢻ࣑ࢼࣥࢺࢿ࢞ࢸ࢕ࣈయ࡜ࡋ࡚⏝࠸ࡿࡇ࡜࡟ࡼ
ࡾ㸪ࢺࣞࢽ࢔㸪ࢩࢡ࣓ࣛࣥ㸪ࣂࣛ㸪࢔ࢧ࡛࢞࢜ⴥࡸⰼᘚࡀ⦰ࢀࡓࣇࣜࣥࢪဏࡁࡢࡼ࠺࡞ᙧែ
ࡀᚓࡽࢀࡓ 㸦ᅗ㸴ࠊ1DUXPLHWDW*LRQHWDO7DQDNDHWDO2QRHWDO㸧ࠋ」ⴥࢆᙧᡂࡍࡿࣂࣛ࡟࠾࠸࡚㸪ࢩࣟ࢖ࢾࢼࢬࢼ 7&365'; ࡀᑠⴥࡢᩘࢆቑຍࡉࡏࡓࡢ࡛㸪」
7.R\DPD
BSJ-Review 6:117 (2015)

植物科学最前線 6:118 (2015)ⴥ࡟࠾࠸࡚ࡶࢩࣟ࢖ࢾࢼࢬࢼ࡜ྠᵝࡢไᚚ⣔ࡀᏑᅾࡍࡿࡇ࡜ࡀ♧၀ࡉࢀࡓ ᅗ㸴ࠊ*LRQHWDO
 ࠋ
୍᪉㸪ࢺ࣐ࢺࡣ᱂ᇵ✀࡛࠶ࡿࡢ࡛㸪⫱✀ࡢ㐣⛬࡛ⴥࡢᙧែࡀኚ໬ࡋࡓ⮬↛✺↛ኚ␗ᰴࡀ⥔ᣢࡉࢀ࡚ࡁࡓࠋࡑࢀࡽ⾲⌧ᆺ␗ᖖࡢゎᯒ࠿ࡽⴥࡢพฝᙧែࢆᙧᡂࡍࡿ㑇ఏᏊࡀྠᐃࡉࢀࡓ
&KHQHWDO3DUQLVHWDO-DVLQVNLHWDO.LPXUDHWDO'DYLG6FKZDUW]HWDO
1D]HWDO ࠋࢺ࣐ࢺࡢ⮬↛✺↛ኚ␗ lanceolate ኚ␗యࡣ㸪࣊ࢸࣟ᥋ྜయ࡛ࡣᑠⴥࢆ࡯
࡜ࢇ࡝ᙧᡂࡋ࡞࠸༢ⴥ࡟ఝࡓ⾲⌧ᆺࢆ♧ࡋ㸪࣍ࣔ᥋ྜయࡣᏊⴥࡢ⼥ྜࡸࢩ࣮ࣗࢺ࣓ࣜࢫࢸ࣒
ࡢᙧᡂ୙඲ࢆక࠺␗ᖖࢆ♧ࡋ㸪⮴Ṛ࡛࠶ࡿ 0DWKDQ -HQNLQV6HWWOHU ࠋࡑࡢ␗ᖖࡢ
ཎᅉ㑇ఏᏊࡀྠᐃࡉࢀࡓ⤖ᯝ㸪&,1OLNH 7&3 ㌿෗ᅉᏊࢆࢥ࣮ࢻࡍࡿ LANCEOLATE (LA)ࡢ
PL5 ᶆⓗ㓄ิ࡟ሷᇶ⨨᥮ࡀ࠶ࡾ㸪LA 㑇ఏᏊࡀ㐣๫࡟Ⓨ⌧ࡋ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ
2ULHWDO ࠋ㏫࡟㸪PL5 ࢆ㐣๫Ⓨ⌧ࡋ㸪LA ࢆྵࡴ CINOLNHTCP 㑇ఏᏊࡢⓎ⌧ࢆᢚไࡋ
ࡓᙧ㉁㌿᥮ࢺ࣐ࢺ࡛ࡣⴥࡢᙧែࡀ」㞧໬ࡋ㸪ᑠⴥࡢᙧᡂࡀⴭࡋࡃಁ㐍ࡉࢀࡓࠋࡇࢀࡽࡢ⾲⌧ᆺࡣࢩࣟ࢖ࢾࢼࢬࢼ࡛ &,1OLNH7&3 ㌿෗ᅉᏊࡀᘬࡁ㉳ࡇࡍᙧែኚ໬࡜ඹ㏻࡛࠶ࡗࡓࠋ
/$ ࡀ࣮࢜࢟ࢩࣥᛂ⟅࡜ CUC/GOB 㑇ఏᏊࡢⓎ⌧ࢆ㜼ᐖࡍࡿⅬࡣࢩࣟ࢖ࢾࢼࢬࢼ &,1OLNH
7&3 ࡢᶵ⬟࡜ఝ࡚࠸ࡿ㸦ᅗ㸳㹀㸧ࠋLA 㑇ఏᏊࡢ㐣๫Ⓨ⌧ࢆ♧ࡍ lanceolate ኚ␗య࡛ࡣ㸪㔝⏕ᆺ
7.R\DPD
BSJ-Review 6:118 (2015)

植物科学最前線 6:119 (2015)࡛ㄆࡵࡽࢀࡿᑠⴥཎᇶ࡛ࡢ࣮࢜࢟ࢩࣥᛂ⟅࡜ CUC/GOB 㑇ఏᏊࡢⓎ⌧ࡀ㜼ᐖࡉࢀࡿ %OHLQ HW
DO  %HQ*HUD 2UL  ࠋ୍᪉㸪/$ ࡣࢪ࣋ࣞࣜࣥᛂ⟅ࡢಁ㐍ᅉᏊ࡜ࡋ࡚ࡶᶵ⬟ࡍࡿ

<DQDLHWDO ࠋࢪ࣋ࣞࣜࣥࡢᢞ୚㸪࠶ࡿ࠸ࡣ procera ኚ␗య㸦ࢪ࣋ࣞࣜࣥཷᐜయࡢኚ␗࡟
ࡼࡿᵓᡂⓗࢪ࣋ࣞࣜࣥᛂ⟅ኚ␗య㸧࡜ࡢ஺㓄࡟ࡼࡾ㸪PL5 㐣๫Ⓨ⌧యࡢᑠⴥࡢ㐣๫࡞ᙧᡂࡀ㜼ᐖࡉࢀࡿࠋࡉࡽ࡟㸪/$ ࡀ APETALA1 (AP1) /FRUITTFUL 㑇ఏᏊࢆᶆⓗ࡜ࡍࡿࡇ࡜ࡶ᫂ࡽ
࠿࡜࡞ࡗ࡚࠸ࡿ %XUNRHWDO ࠋࢩࣟ࢖ࢾࢼࢬࢼ࡛ࡣ jaw-d ኚ␗య࡛ AP1 㑇ఏᏊࡢⓎ⌧ࡀୖ᪼ࡍࡿࡀ /LHWDO 㸪7&3 ㌿෗ᅉᏊ࡟ࡼࡿ AP1 㑇ఏᏊࡢⓎ⌧ไᚚ࡟ࡘ࠸࡚ヲ⣽ࡣ୙࡛᫂࠶ࡿࠋ༢ⴥ࡜」ⴥ࡛ඹ㏻࡞ &,1OLNH7&3 ㌿෗ᅉᏊࡢᶵ⬟ࡀ᫂ࡽ࠿࡟ࡉࢀࡘࡘ࠶ࡿࡀ㸪✀≉␗ⓗ࡞ᶵ⬟࡟ࡘ࠸࡚ࡢ▱ぢࡣ᩿∦ⓗ࡛࠶ࡿࠋCINOLNH TCP 㑇ఏᏊࡣࢩࣟ࢖ࢾࢼࢬࢼ࡜ࢺ࣐ࢺ࡛㸪࡜
ࡶ࡟ⴥ࡛Ⓨ⌧ࡍࡿ 3DODWQLNHWDO.R\DPDHWDO2ULHWDO ࠋⴥཎᇶ࡟࠾ࡅࡿ LA┦ྠ㑇ఏᏊࡢⓎ⌧ࡢ㛤ጞ᫬ᮇࢆࢼࢫ⛉᳜≀࡛ẚ㍑ࡋࡓ◊✲࡛ࡣ㸪༢ⴥ࡛ࡣⴥࡢⓎ⏕ࡢ᪩࠸᫬ᮇ࡟ LA ࡢⓎ⌧ࡀㄏᑟࡉࢀ㸪」ⴥ࡛ࡣẚ㍑ⓗ㐜ࢀ࡚ LA ࡢⓎ⌧ࡀㄏᑟࡉࢀࡿ࡜ሗ࿌ࡉࢀࡓ
6KOHL]HU%XUXNRHWDO ࠋࡲࡓ㸪ࢩࣟ࢖ࢾࢼࢬࢼ࡛ࡣ㸪CINOLNHTCP ࡢⓎ⌧㔞ࢆⓎ⏕᫬ᮇ≉␗ⓗ࡟ᨵኚࡋࡓ࡜ࡇࢁ㸪พฝᙧែኚ໬ࢆㄏᑟྍ⬟࡞᫬ᮇࡀつᐃࡉࢀ࡚࠸ࡿ࡜ᥦ᱌ࡉࢀࡓ(IURQLHWDO ࠋࡇࡢࡼ࠺࡞᫬ᮇⓗ࡞ᖜࢆつᐃࡍࡿไᚚࡀᙧែࡢከᵝᛶⓎ⌧࡟㛵ࢃࡗ࡚࠸ࡿ
ࡢ࠿ࡶࡋࢀ࡞࠸ࡀ㸪ⴥཎᇶ࠿ࡽᡂ⇍ⴥࢆᙧᡂࡍࡿ㐣⛬ࡣ㠀ᖖ࡟ከᵝ࡛࠶ࡾ +DJHPDQQ*OHLVVEHUJ 㸪࡞࠾୍ᒙࡢゎᯒࡀᚲせ࡛࠶ࡿࠋ
㸴㸬⤊ࢃࡾ࡟
㐍໬ࡢ㐣⛬࡛㸪༢ⴥ࡜」ⴥࡢኚ᥮࡞࡝ᙧែࡢ኱ࡁ࡞ኚ໬ࡣఱᗘࡶ⾜ࢃࢀ࡚࠸ࡿࠋ᭱㏆㸪࢔ࣈࣛࢼ⛉ࡢ᳜≀ࡣ㐍໬ࡢ㐣⛬࡛࣓࣍࢜ࢻ࣓࢖ࣥ㌿෗ᅉ㑇ఏᏊࡀ㔜」ࡸᾘኻࡍࡿࡇ࡜࡛㸪ⴥࡢพฝᙧែࢆኚ໬ࡉࡏࡓ࡜ሗ࿌ࡉࢀ࡚࠸ࡿ 9ODGHWDO6LFDUGHWDO ࠋࡇࡢࡼ࠺࡟᪂ࡓ
࡟⋓ᚓ࠶ࡿ࠸ࡣᾘኻࡋࡓ㑇ఏᏊࡀ 7&3 ㌿෗ᅉᏊ࡜ࡑࡢไᚚ⣔࡟࡝ࡢࡼ࠺࡞ᙳ㡪ࢆ୚࠼ࡿࡢ࠿⯆࿡῝࠸ࠋࡲࡓ㸪ᮏ✏࡛ࡣ㸪୺࡟༢ⴥ࡜」ⴥ࡟ඹ㏻࡞พฝᙧែᙧᡂࡢไᚚᶵᵓ࡟ࡘ࠸࡚㏙࡭ࡓࡀ㸪᳜≀✀≉␗ⓗ࡞ไᚚᶵᵓࡶὀຊࡍ࡭ࡁゎᯒᑐ㇟࡛࠶ࡿ (IURQLHWDO7VXND\D ࠋ✀≉␗ⓗ࡞ไᚚᶵᵓ࡜ 7&3 ㌿෗ᅉᏊࡀ࡝ࡢࡼ࠺࡟┦஫స⏝ࡍࡿࡢ࠿㸪௒ᚋࡢゎᯒࡀᚅࡓࢀࡿࠋ
ᮏ✏࡛ࡣ㸪7&3 ㌿෗ᅉᏊࡢᙺ๭ࢆ୰ᚰ࡟ࡋ࡚㸪㑇ఏᏊᶵ⬟㔜」࡜ከᒙⓗ࡞άᛶㄪ⠇ࢆᇶ┙࡜ࡋࡓⴥࡢพฝᙧែࡢᙧᡂᶵᵓ࡟ࡘ࠸࡚㏙࡭࡚ࡁࡓࠋ᭱㏆࡟࡞ࡗ࡚㸪ຍ㱋࡟ࡼࡿⴥᆺࡢኚ໬
࡟ 7&3 ㌿෗ᅉᏊࡀ㛵ࢃࡿ࡜ᣦ᦬ࡉࢀࡓࡀ㸪ෆ⏕ࢩࢢࢼࣝ࡜ 7&3 ㌿෗ᅉᏊ࡜ࡢ┦஫స⏝ࡢゎᯒࡣ➃⥴࡟ࡘ࠸ࡓࡤ࠿ࡾ࡛࠶ࡿ 5XELR6RPR]DHWDO ࠋlanceolate ኚ␗య࡛ࡣ KNOX 㑇ఏᏊࢆ㐣๫Ⓨ⌧ࡋ࡚ࡶ⾲⌧ᆺࡣ lanceolate ኚ␗య࡟ఝࡓ༢⣧࡞ᙧែ࡛࠶ࡿࡢ࡛ +DUHYHQ HW DO 㸪7&3 ㌿෗ᅉᏊ࡜ KNOX 㑇ఏᏊࡢᶵ⬟ࡀ┦஫స⏝ࡍࡿࡇ࡜ࡶ᫂ࡽ࠿࡛࠶ࡿࠋ௒ᚋࡣ㸪」
ᩘࡢ᝟ሗࢆ 7&3 ㌿෗ᅉᏊࡀ⤫ྜࡋ࡚࡝ࡢࡼ࠺࡟ⴥࡢᙧែ࡜ࡋ࡚ฟຊࡍࡿࡢ࠿㸪௚ࡢไᚚ⣔࡜ࡢ┦஫స⏝ゎᯒࡶ㔜せ࡜࡞ࡿࠋࡲࡓ㸪7&3 ㌿෗ᅉᏊ࡟ࡼࡿ᝟ሗࡢฟຊࡣᶆⓗ㑇ఏᏊࢆ⥙⨶ⓗ࡟ྠᐃࡍࡿࡇ࡜࡟ࡼࡾ⌮ゎ࡛ࡁࡿࠋࡇࢀࡽࡢゎᯒ࡟ࡼࡾ㸪᪂ࡓ࡞พฝᙧែࡢไᚚᅉᏊࢆ᥈⣴ࡋ㸪ⴥࡢ࿘⦕㒊ࡢ⣽⬊ࡀ࡝ࡢࡼ࠺࡟ศ⿣࡜ఙ㛗ࢆ༠ㄪࡍࡿࡢ࠿᫂ࡽ࠿࡟ࡋࡓ࠸ࠋࡉࡽ࡟㑇ఏᏊࣞ࣋ࣝࡢ▱ぢࢆ฼⏝ࡋ࡚㸪ᖹ⁥࡞࿘⦕㒊࡜พฝ㒊࡛ࡑࡶࡑࡶఱࡀ㐪࠺ࡢ࠿㸪ศᏊᐇయࡢゎ
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BSJ-Review 6:119 (2015)

植物科学最前線 6:120 (2015)

᫂࡟ࡶ㏕ࡾࡓ࠸ࠋ㸵㸬ㅰ㎡ி㒔኱Ꮫ⏕ែᏛ◊✲ࢭࣥࢱ࣮࣭ᕤ⸨ὒ༤ኈ࠿ࡽࢱࢼࢶࢣࣂࢼᒓ᳜≀ Cardamine dentata ࢆศ୚࠸ࡓࡔࡁࠊ࠾♩ࢆ⏦ࡋୖࡆࡿࠋᮏ⥲ㄝ࡛⤂௓ࡋࡓᙧ㉁㌿᥮᳜≀࡟㛵ࡋ࡚ࠊࢺࣞࢽ࢔࡜࢟ࢡ
ࡣ㎰◊ᶵᵓⰼࡁ◊✲ᡤ࣭኱ᆤ᠇ᘯ༤ኈࠊࢩࢡ࣓ࣛࣥࡣ໭⯆໬Ꮫᕤᴗᰴᘧ఍♫࣭ᑎᕝ㍤ᙪ༤ኈࠊ
ࣂࣛࡣࢧࣥࢺ࣮ࣜࢢ࣮ࣟࣂࣝ࢖ࣀ࣮࣋ࢩࣙࣥࢭࣥࢱ࣮ᰴᘧ఍♫࣭⏣୰Ⰻ࿴༤ኈࠊ࢔ࢧ࢞࢜ࡣ
⟃Ἴ኱Ꮫ㑇ఏᏊᐇ㦂ࢭࣥࢱ࣮࣭ᑠ㔝㐨அ༤ኈ࡟ࡼࡿ◊✲ᡂᯝ࡛࠶ࡿࠋⴭ⪅ࡀ◊✲ࢆ㐙⾜ࡍࡿ࠺࠼࡛ࠊ⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ࣭㧗ᮌඃ༤ኈࠊி㒔኱Ꮫ኱Ꮫ㝔⏕࿨⛉Ꮫ◊✲⛉࣭బ⸨ᩥᙪ༤ኈ
࡟࠾ୡヰ࡟࡞ࡗࡓࠋྡྂᒇ኱Ꮫࢺࣛࣥࢫࣇ࢛࣮࣐ࢸ࢕ࣈ⏕࿨ศᏊ◊✲ᡤ࣭Ⅽ㔜ᡯぬ༤ኈࠊ❧ᩍ኱Ꮫ⌮Ꮫ㒊࣭୰⏣ᮍ཭ᕼ༤ኈࠊ༏ྡࡢᰝㄞ⪅ࡢඛ⏕࡟ࠊ㈗㔜࡞ࡈពぢࢆ㡬ᡝࡋࠊឤㅰ⏦ࡋୖࡆࡿࠋᮏ◊✲ࡣ⛉Ꮫ◊✲㈝⿵ຓ㔠ᇶ┙ &   ࡟ࡼࡿᨭ᥼ࢆཷࡅࡓࠋ
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GHYHORSPHQWLQArabidopsis thalianaDQRWVRJUDGXDOSURFHVVDev. Cell 
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0 /DXIV3$&RQVHUYHGPROHFXODUIUDPHZRUNIRUFRPSRXQGOHDIGHYHORSPHQWScience%XUNR<6KOHL]HU%XUNR6<DQDL26KZDUW],=HOQLN,'-DFRE+LUVFK-.HOD,
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BSJ-Review 6:120 (2015)

植物科学最前線 6:121 (2015)

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BSJ-Review 6:123 (2015)

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BSJ-Review 6:124 (2015)

植物科学最前線 6:125 (2015)

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BSJ-Review 6:125 (2015)