·常规信息
基因(座)名称生物钟相关
Gigantea
基因符号OsGI
所在染色体1 (已克隆)

OsGI 与拟南芥GIGANTEA(GI) At1g22770 的同源,其表达受生理时钟控制,这点类似于拟南芥,但是在长日照条件下,水稻中的GI 抑制开花,这一点又不同于拟南芥中的GI。

Os-GI 通过调节可以使GA失活的酶基因来维持GA的生物活性水平。osgi-1植株表现出半矮化表型,节间和叶鞘的伸长减少(Itoh et al. 2011)。

Os-GIGANTEA 赋予大田生长的水稻全转录组正常的昼夜节律。Os-GI 突变体在实验室中短日照下晚花,长日照没差别,大田中和野生型差别不大(Izawa et al. 2011)。

OsGI可能是水稻中参与渗透胁迫应答的一个负调控因子(Li et al. 2016)。

【相关登录号】
contigs及其产物:AP003047BAD68052, BA000010BAD68052, AP008207BAF04134
基因及产物ID号:AY885713AAX83418
cDNAs及其产物:AJ133787CAB56058, AK067038, AK072166
参考基因组位点:Os01g0182600(RAP-DB, Gramene←→ LOC_Os01g08700(本地MSU-RGAP←→ LOC4325329(NCBI)
参考基因组产物:XM_015794097XP_015649583, XM_015794092XP_015649578, XM_015794104XP_015649590, XM_015794111XP_015649597, XM_015794117XP_015649603, XM_015794123XP_015649609
uniprot库登录号:Q9AWL7, Q5VR72, Q5VR73, Q9SMB2, Q0JQ44
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·ONTOLOGY及相关基因
表型特征节间长度(TO:0000145), 抽穗期(TO:0000137), 叶鞘长(TO:0002689), 渗透反应敏感性(TO:0000095)
生物进程渗透胁迫应答(GO:0006970), 生物钟调节(GO:0009649), 光周期-开花调控(GO:2000028)
细胞结构细胞核(GO:0005634)
·参考文献
1Shuai Li;Wenhao Yue;Min Wang;Wenmin Qiu;Lian Zhou;Huixia Shou
  Mutation of OsGIGANTEA Leads to Enhanced Tolerance to Polyethylene Glycol-Generated Osmotic Stress in Rice
  Frontiers in Plant Science, 2016, 7: 465
2Hironori Itoh;Takeshi Izawa
  A study of phytohormone biosynthetic gene expression using a circadian clock-related mutant in rice
  Plant Signaling & Behavior, 2011, 6(12): 1932-1936
3Takeshi Izawa;Motohiro Mihara;Yuji Suzuki;Meenu Gupta;Hironori Itoh;Atsushi J. Nagano;Ritsuko Motoyama;Yuji Sawada;Masahiro Yano;Masami Yokota Hirai;Amane Makino;Yoshiaki Nagamura
  Os-GIGANTEA Confers Robust Diurnal Rhythms on the Global Transcriptome of Rice in the Field
  The Plant Cell, 2011, 23(5): 1741-1755
4Hironori Itoh;Yasunori Nonoue;Masahiro Yano;Takeshi Izawa
  A pair of floral regulators sets critical day length for Hd3a florigen expression in rice
  Nature Genetics, 2010, 42(7): 635-638
5Song Lim Kim;Shinyoung Lee;Hyo Jung Kim;Hong Gil Nam;Gynheung An
  OsMADS51 Is a Short-Day Flowering Promoter That Functions Upstream of Ehd1, OsMADS14, and Hd3a
  Plant Physiology, 2007, 145(4): 1484-1494
6Bong-Soo Shin;Jeong-Hyun Lee;Jeong-Hwan Lee;Hyun-Joo Jeong;Choong-Hyo Yun;Jeong-Kook Kim
  Circadian regulation of rice (Oryza sativa L.) CONSTANS-like gene transcripts
  Molecules and Cells, 2004, 17(1): 10-16
7Ryosuke Hayama;Shuji Yokoi;Shojiro Tamaki;Masahiro Yano;Ko Shimamoto
  Adaptation of photoperiodic control pathways produces short-day flowering in rice
  Nature, 2003, 422(6933): 719-722
8Ryousuke Hayama;Takeshi Izawa;Ko Shimamoto
  Isolation of Rice Genes Possibly Involved in the Photoperiodic Control of Flowering by a Fluorescent Differential Display Method
  Plant and Cell Physiology, 2002, 43(5): 494-504
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