Identification and Characterization of LRR-RLK Family Genes in Potato Reveal Their Involvement in Peptide Signaling of Cell Fate Decisions and Biotic/Abiotic Stress Responses.
Identification and Characterization of LRR-RLK Family Genes in Potato Reveal Their Involvement in Peptide Signaling of Cell Fate Decisions and Biotic/Abiotic Stress Responses.
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马铃薯中 LRR-RLK 家族基因的鉴定和表征揭示了它们参与细胞命运决定和生物/非生物应激反应的肽信号传导。
作者：
Li X;Salman A;Guo C;Yu J;Cao S;Gao X;Li W;Li H;Guo Y
富含亮氨酸重复序列的受体样蛋白(LRR-RLKs)是最大的受体样蛋白家族，在植物的生长发育和逆境反应中起着重要的调节作用。本研究在马铃薯(Solanum Tuberosum)基因组中鉴定了246个LRR-RLK基因，并将其进一步划分为14个亚家族。基因结构分析表明，同一亚群内的基因具有相似的外显子/内含子结构。一个标志性的小肽识别基序(RXR)被发现在IX亚家族的成员中非常保守，这表明这些成员可能将肽信号识别为配体。246个StLRR-RLK基因中有26个是由串联或节段性复制事件引起的。表达谱显示StLRR-RLK基因在不同器官/组织中差异表达，并发现有几个基因对不同的胁迫处理有反应。此外，还发现StLRR-RLK117能够与StLRR-RLK042和StLRR-RLK052形成均二聚体和异二聚体。值得注意的是，StLRR-RLK117与Solanum tuberosum WUSCHEL(StWUS)的重叠表达区域表明，CLV3-CLV1/BAM-WUS反馈环可能在马铃薯中保守，以维持茎顶端分生组织中的干细胞动态平衡。
Leucine-rich repeat receptor-like kinases (LRR-RLKs) represent the largest subfamily of receptor-like kinases (RLKs) and play important roles in regulating growth, development, and stress responses in plants. In this study, 246 LRR-RLK genes were identified in the potato (Solanum tuberosum) genome, which were further classified into 14 subfamilies. Gene structure analysis revealed that genes within the same subgroup shared similar exon/intron structures. A signature small peptide recognition motif (RxR) was found to be largely conserved within members of subfamily IX, suggesting that these members may recognize peptide signals as ligands. 26 of the 246 StLRR-RLK genes were found to have arisen from tandem or segmental duplication events. Expression profiling revealed that StLRR-RLK genes were differentially expressed in various organs/tissues, and several genes were found to be responsive to different stress treatments. Furthermore, StLRR-RLK117 was found to be able to form homodimers and heterodimers with StLRR-RLK042 and StLRR-RLK052. Notably, the overlapping expression region of StLRR-RLK117 with Solanum tuberosum WUSCHEL (StWUS) suggested that the CLV3–CLV1/BAM–WUS feedback loop may be conserved in potato to maintain stem cell homeostasis within the shoot apical meristem.
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影响因子：
4.8
作者：
Osakabe, Yuriko;Mizuno, Shinji;Yamaguchi-Shinozaki, Kazuko
通讯作者：
Yamaguchi-Shinozaki, Kazuko
来自两个柑橘属物种的 LRR-RLK 家族：全基因组鉴定和进化方面。
影响因子：
4.4
作者：
Magalhães DM;Scholte LL;Silva NV;Oliveira GC;Zipfel C;Takita MA;De Souza AA
通讯作者：
De Souza AA
影响因子：
4.5
作者：
Karve, Rucha;Liu, Wusheng;Shpak, Elena D.
通讯作者：
Shpak, Elena D.
影响因子：
9.2
作者：
Fisher, Kate;Turner, Simon
通讯作者：
Turner, Simon
DOI：
10.1111/j.1365-313x.2011.04518.x
发表时间：
2011-04
期刊：
The Plant journal : for cell and molecular biology
影响因子：
--
作者：
Gish LA;Clark SE
通讯作者：
Clark SE