De novo assembly of chloroplast genomes of Corchorus capsularis and C. olitorius yields species-spec

来源 :作物学报(英文版) | 被引量 : 0次 | 上传用户:yu555497
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Jute (Corchorus spp.) is a member of the Malvaceae family, which comprises more than 100 species. The systematic positions of jute species have remained unsettled. Chloroplasts are maternally inherited and their genomes are widely used for plant phylogenetic studies. In the present study, the chloroplast genomes of Corchorus capsularis and C. olitorius were assembled, with sizes of respectively 161,088 and 161,766 bp. Both genomes contained 112 unique genes (78 protein-coding, four rRNA, and 30 tRNA genes). Four regions with high variation between the two species were located in single-copy rather than inverted-repeat regions. A total of 66 simple sequence repeats (SSRs) were identified in the C. capsularis chloroplast genome and 56 in that of C. olitorius. Comparison of the two chloroplast genome sequences permitted the evaluation of nucleotide variation including 2417 single-nucleotide polymorphisms sites and 294 insertion or deletion sites, of which one marker (cpInDel 205) could discriminate the two jute species. Comparison of the C. capsularis and C. olitorius chloroplast genomes with those of other species in the Malvaceae revealed breakpoints in the accD locus, which is involved in fatty acid synthesis, in C. capsularis and C. olitorius. This finding suggests that genes from the chloroplast genome might have been transferred to the nuclear genome in some Corchorus species. This hypothesis was supported by synteny analysis of the accD region among the nuclear, chloroplast, and mitochondrial genomes. To our knowledge, this is the first report of the assembled chloroplast genome sequences of C. capsularis and C. olitorius. C. capsularis and C. olitorius are closely related to Gossypium species and there are abundant microstructure variations between these two genera. These results will expand our understanding of the systematics of species in the Malvaceae.
其他文献
项目教学法是当下教育事业中非常高效的教学方法,在中职教学领域有着无限的应用前景.本文通过项目教学法概念阐述,以及项目教学法的优势分析,对项目教学法在C语言课程中的应
As the end products of cellular regulatory processes, metabolites provide the link between genotypes and phenotypes. Although metabolites have been widely appli
近年来,随着我国经济的快速发展,建筑工程项目愈来愈多,与建筑相关的建筑装饰工程概预算课程因而愈来愈重要.但当前工程装饰概预算课程建设存在一定的问题.文章主要针对现阶
随着科学技术的进行以及社会经济的发展,电能已经成为我们日常生活十分常用的能源,同时人们对于电能的需求越来越大,离开了电能,人们的日常生活生产将受到极大的影响,我国也
Fusarium head blight (FHB) is one of the prevalent fungal diseases of wheat worldwide. Exploring new FHB resistance quantitative trait loci (QTL) in adapted whe
会议
随着信息技术的发展,新媒体的出现不仅给纸质媒体带来一定的挑战,同样给电视新闻带来了一定的压力.电视新闻能够经久不衰的原因之一就是拥有深厚的群众基础,但是在新时期背景
会议
25、登记申请人遗失收件收据应如何处理,是否要登报声明作废? 登记收件时,登记机关应当出具收件收据,收件收据的主要作用是:避免日后因收取的登记文件的名称、数量等与申