Two FERONIA-like receptor (FLR) genes are required to maintain architecture, fertility, and seed yield in rice
Two FERONIA-like receptor (FLR) genes are required to maintain architecture, fertility, and seed yield in rice
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维持水稻结构、育性和种子产量需要两个 FERONIA 样受体 (FLR) 基因
DOI：
10.1007/s11032-016-0580-x
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发表时间：
2016-11-01
影响因子：
3.1
通讯作者：
Liu, Xuanming
中科院分区：
文献类型：
--
作者：
Li, Chiyu;Wang, Long;Liu, Xuanming
拟南芥基因FERONIA（FER）调节细胞伸长和生育力。虽然FER在双子叶植物拟南芥中促进植物生长和调节结实的功能已被研究，但同源FERONIA-like receptor（FLR）在单子叶植物水稻中的功能却知之甚少。在本研究中，我们建立了flr 1和flr 2 T-DNA插入无效突变体，并研究了FLR在水稻产量中的潜在作用。结果表明，FLR 1和FLR 2均参与水稻分蘖，但参与程度不同。有趣的是，FLR 1和FLR 2在育性相关的功能上表现出不同，FLR 1可能特异性地参与水稻雄配子体的发育。FLR 1和FLR 2具有相似但不同的功能，因此FLR 1和FLR 2可能以互补的方式调节水稻产量。FLR 1和FLR 2功能的相似性和不同性也提示了FER可能与FLR的复制有关，FLR 1和FLR 2承担了FER的部分功能。
The Arabidopsis gene FERONIA (FER) regulates cell elongation and fertility. Although the function of FER in promoting plant growth and regulating fructification in dicotyledon Arabidopsis has been investigated, how homologous FERONIA-like receptors (FLRs) function in the monocotyledon rice crop is little known. In this study, we generated flr1 and flr2 T-DNA insertion null mutants and investigated potential role of FLRs in rice yield. We observed that both FLR1 and FLR2 were involved in tillering of rice, but at different levels. Interestingly, FLR1 and FLR2 showed different functions related to fertility, and FLR1 might be specifically involved in rice male gametophyte development. With these similar but different functions, we suggest that FLR1 and FLR2 might function in complementary ways to regulate the yield of rice. The similar and different functions of FLR1 and FLR2 also suggest that there might be differentiation from FER to the duplication of FLRs, with FLR1 and FLR2 taking on partial functions from FER.