The Arabidopsis thaliana SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASES1 and 2 control male sporogenesis
The Arabidopsis thaliana SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASES1 and 2 control male sporogenesis
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DOI：
10.1105/tpc.105.036814
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发表时间：
2005-12-01
期刊：
影响因子：
11.6
通讯作者：
de Vries, S
中科院分区：
文献类型：
--
作者：
Albrecht, C;Russinova, E;de Vries, S
拟南芥体细胞胚胎发生受体样激酶（SERK）家族由5个密切相关的成员组成。SERK 1和SERK 2基因在整个发育过程中表现出复杂的表达模式。两者都在花药原基中表达，直到第二次壁分裂。在这一点之后，表达在孢子母细胞中停止，并在绒毡层和中间层前体中继续。SERK 1和SERK 2的单敲除突变体没有表现出明显的表型。SERK 1和SERK 2的双突变体由于绒毡层特化失败而完全雄性不育。任何一个基因的单拷贝都可以恢复生育能力。SERK 1和SERK 2蛋白可以在体内形成同源二聚体或异源二聚体，表明它们在SERK 1/SERK 2信号复合物中是可互换的。
The Arabidopsis thaliana SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASE (SERK) family of plasma membrane receptors consists of five closely related members. The SERK1 and SERK2 genes show a complex expression pattern throughout development. Both are expressed in anther primordia up to the second parietal division. After this point, expression ceases in the sporocytes and is continued in the tapetum and middle layer precursors. Single knockout mutants of SERK1 and SERK2 show no obvious phenotypes. Double mutants of SERK1 and SERK2 are completely male sterile due to a failure in tapetum specification. Fertility can be restored by a single copy of either gene. The SERK1 and SERK2 proteins can form homodimers or heterodimers in vivo, suggesting they are interchangeable in the SERK1/SERK2 signaling complex.