当前位置: 首页 > 文章 > 沙田柚RNase-like基因的克隆及序列分析 北方园艺 2015 (24) 70-74
Position: Home > Articles > Cloning and Sequence Analysis of RNase-like Gene FromCitrus grandis var.Shatinyu Hort Northern Horticulture 2015 (24) 70-74

沙田柚RNase-like基因的克隆及序列分析

作  者:
刘玉洁;郭丹妮;张渝;覃信梅;李惠敏;秦新民
单  位:
广西师范大学生命科学学院珍稀濒危动植物生态与环境保护省部共建教育部重点实验室
关键词:
沙田柚;RNase-like基因;序列分析
摘  要:
以沙田柚自交和异交花柱为试材,采用高通量测序技术对其进行转录组测序。通过差异分析得到RNase-like贮藏蛋白的基因序列,并研究了其理化性质。结果表明:该基因全长1 048bp(GenBank登录号为KR363153),开放阅读框(ORF)全长为693bp,共编码230个氨基酸,编码的蛋白质的分子量为25.82kDa,理论等电点为5.30,含有核苷酸结合的保守区域,属于RNase-T2超家族成员。该蛋白为疏水性蛋白,可能的磷酸化位点共有15个。氨基酸序列同源性分析表明,该基因编码的氨基酸与甜橙和克莱门柚的同源性均为99%。系统进化树显示沙田柚RNase-like贮藏蛋白基因与甜橙,克莱门柚的亲缘关系较近,属于同一进化分支。
译  名:
Cloning and Sequence Analysis of RNase-like Gene FromCitrus grandis var.Shatinyu Hort
作  者:
LIU Yujie;GUO Danni;ZHANG Yu;QIN Xinmei;LI Huimin;QIN Xinmin;College of Life Science,Guangxi Normal University,Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection;
关键词:
Citrus grandis var;;Shatinyu Hort;;RNase-like gene;;sequence analysis
摘  要:
The self-pollinated and cross-pollinated style of Citrus grandis var.Shatinyu Hort were used as test materials and transcriptome sequenced by high-throughput sequencing technology.The sequence of RNase-likestorage protein was obtained by differential analysis,what's more,the physical and chemical properties of this protein were studied.The result showed that,the length of this gene(GenBank accession number:KP172529)was 1 048 bp with an open reading frame(ORF)of 693 bp,encoding 290 amino acids with deduced molecular weight of 25.82 kDa,and the theoretical pI value was 5.30.And it belonged to the RNase-T2 superfamily with a conserved region binding the nucleotide.This protein was a hydrophobic protein,and there were 15 phosphorylation sites within the polypeptide chain.The homology analysis of amino acid sequence indicated that the RNase-like storage protein shared high homology with Citrus sinensis(99%)and Citrus clementina(99%).The phylogenetic tree revealed that RNase-like gene storage protein showed closer kinship with Citrus sinensis and Citrus clementina,indicating that they belonged to the same evolutionary branch.

相似文章

计量
文章访问数: 9
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊