黄瓜IQD/SUN基因家族全基因组鉴定及分析  

Genome-wide Identification and Analysis of IQD/SUN Gene Family in Cucumber

作　　者：葛倩 王祥飞 李豪 任仲海 王丽娜[1] Ge Qian;Wang Xiangfei;Li Hao;Ren Zhonghai;Wang Lina(College of Horticultural Science and Engineering,Shandong Agricultural Universit,Tai'an,271018)

机构地区：[1]山东农业大学园艺科学与工程学院

出　　处：《基因组学与应用生物学》2019年第9期4110-4119,共10页Genomics and Applied Biology

基　　金：国家自然科学基金(31171977);国家自然基金青年基金(31401894);山东省农业良种工程项目(2016LZGC033);山东省重点研发计划(2018GNC110014);山东省“双一流”专项建设基金;山东省泰山学者建设工程共同资助

摘　　要：黄瓜果型是非常重要的外观商品性状,CsSUN是调控黄瓜果型的关键基因。为了明确SUN基因家族在黄瓜中的潜在功能,本研究对其成员进行了全基因组鉴定,分析了黄瓜SUN基因家族成员及其编码蛋白的结构,比较了黄瓜、拟南芥和番茄SUN基因家族的进化关系,并明确了黄瓜SUN基因家族在染色体上的分布和组织表达特异性。结果表明:黄瓜SUN基因家族包含28个成员,编码的蛋白均含有IQD结构域,其核心基序为IQ基序(IQxxxRGxxxR)。黄瓜SUN基因家族成员在果实和根中表达的数量较多,在茎和卷须中表达的较少。本研究为深入研究SUN基因家族各成员在黄瓜中的作用提供了一定的理论依据。The fruit shape of cucumber is an important appearance commodity character. CsSUN was the key gene to regulate cucumber fruit shape. In order to clarify the potential function of SUN family members in cucumber, the whole genomic identification of SUN family was performed in this study. The structure of cucumber SUN family genes and their encoded proteins were analyzed, and the evolutionary relationship of SUN proteins was compared among cucumber, Arabidopsis and tomato, and the distribution of SUN genes on cucumber chromosome and their tissue expression pattern were clarified. The results showed that there were 28 members in Cucumber SUN gene famil. All encoded protein contained IQD domains, and ther core motif was IQ motif (IQxxxRGxxR). SUN family members express highly in fruit and root, but only few in stem and tendril. This study provided a theoretical basis for further studying the roles of SUN gene family members in cucumber.

关 键 词：黄瓜 SUN 生物信息学 基因表达 

分 类 号：Q943.2[生物学—植物学]