大粒香水稻叶绿体基因组特征分析 吴朝昕.pdf

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广西植物
A 碱基或者 U（T）碱基，亮氨酸密码子使用了 1 944 次，最多；半胱氨
酸的密码子仅使用 198 次，最少。（4）检测到 129 个 SSR，其中有 95 个单核苷酸重复，且
大部分 SSR 序列由 A/T 碱基组成。（5）系统发育分析结果表明，大粒香与热带粳稻亲缘关
系最近聚为一类。该研究揭示了大粒香叶绿体基因组信息，并确定了大粒香系统发育所属分
支。
关键词：水稻，大粒香，叶绿体基因，SSR，系统发育分析
Analysis of chloroplast genome of rice Dalixiang
WU Chaoxin, LIU Xuewei*, LI Zujun, LONG Wuhua, GONG Yanlong, ZHU Susong
（Guizhou Rice Research Institute, Guizhou Academy of Agricultural Sciences,
550006, Guiyang, China）
Abstract:As an important high-quality rice resource in Guizhou province, Dalixiang has a large
planting area, and has brought higher economic benefits to society in the process of rural
revitalization. However, there are few theoretical researches on the genomics of Dalixiang. In
order to reveal the characteristics and phylogenetic relationships of chloroplast genome of large
grain perfume rice, the chloroplasts of grancas fragrances were sequenced and their genomic
characteristics were analyzed. The results were as follows: (1) The chloroplast genome of
Dalixiang was 134 563 bp, including LSC(80 864 bp),SSC(12 347 bp)and two IRs(20 676 bp). (2)
There were 129 genes annotated in the chloroplast genome of Dalixiang, which could be divided
into protein coding, tRNA and rRNA, with 85, 36 and 8 genes respectively. (3) Codon bias
基金项目：黔农科院青年基金([2018]101 号)；贵州省科技基础项目(黔科合基础[2020]1Y101);黔农科院引导
项目[2018]03 号；黔科合支撑项目([2019]2304 号)；黔科中引地项目([2019]4001)；黔科合平台人才项目
([2017]5719)；黔科合基础（ZK[2021]124）[Supported by Youth Fund of Guizhou Academ