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首页> 外文期刊>South African Journal of Botany >Organelle genetic diversity in a global collection of Jute (Corchorus capsularis and C. olitorius, Malvaceae)
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Organelle genetic diversity in a global collection of Jute (Corchorus capsularis and C. olitorius, Malvaceae)

机译：全球黄麻集合中的细胞器遗传多样性（Corchorus capsularis和C. olitorius，锦葵科）

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摘要

We investigated organelle genetic diversity of 160 jute (C. capsularis and C. olitorius) genotypes comprising of diverse accessions from countries using 13 mitochondrial and one chloroplast DNA specific markers. Mitochondrial markers ALM_4/ALM_5 and nad3 each amplified 15 amplicons in C. capsularis. Principal coordinate analysis (PCoA) and cluster based grouping exhibited close similarity, revealing five groups in C. capsularis (C-alpha, C-beta, C-gamma, C-delta and C-epsilon) and three groups in C. olitorius (O-alpha, O-beta and O-gamma). Representative amplicons of each group were determined based on the shared amplicons (N60%) among genotypes within each group. The C. capsularis groups were characterized by 41 (C-alpha and C-beta), 39 (C-delta), 36 (C-gamma) and 35 (C-epsilon) amplicons from 14 loci. The three C. olitorius groups were characterized by 35 (O-beta and O-gamma) and 33 (O-alpha) amplicons. The organelle DNA of C. olitorius exhibited lower heterozygosity and diversity compared to that of C. capsularis. Molecular variance among the groups accounted for 51% of the total variation, while within-group variation was very low (6%). The organelle genetic group of the wild Corchorus species was distinct from the cultivated species, exhibiting closer association with C. capsularis. The classification of groups matched well with both Bayesian structure analysis and non-Bayesian recollection approach. Within each species, organelle genetic groups were associated with geographical distribution. The high genetic association of C. capsularis organelle genetic groups with that of wild Corchorus suggests a possible African origin of C. capsularis. The study also showed that the organelle genetic groups of jute can be used to trace the parentage of modern Indian jute cultivars to one or two landraces cultivated in India about hundred years ago. (C) 2015 SAAB. Published by Elsevier B.V. All rights reserved.
机译：我们调查了160种黄麻（荚膜梭菌和少食梭状芽孢）基因型的细胞器遗传多样性，其中包括使用13个线粒体和一种叶绿体DNA特异性标记的不同国家的登录。线粒体标记ALM_4 / ALM_5和nad3分别在荚膜梭菌中扩增了15个扩增子。主坐标分析（PCoA）和基于聚类的分组显示出相似的相似性，揭示了荚膜梭菌中的五个组（C-alpha，C-beta，C-gamma，C-delta和C-epsilon）和三类中的C. olitorius（ O-alpha，O-beta和O-gamma）。根据各组基因型之间共享的扩增子（N60％）确定各组的代表性扩增子。荚膜梭菌组的特征是来自14个位点的41个（C-alpha和C-beta），39个（C-delta），36个（C-γ）和35个（C-ε）扩增子。这三个低聚梭菌的特征是有35个（O-beta和O-gamma）和33个（O-alpha）扩增子。与荚膜梭菌相比，少油梭菌的细胞器DNA表现出较低的杂合性和多样性。各组之间的分子变异占总变异的51％，而组内变异非常低（6％）。野生Corchorus物种的细胞器遗传群不同于栽培物种，与荚膜梭菌有更紧密的联系。组的分类与贝叶斯结构分析和非贝叶斯记忆方法都非常匹配。在每个物种内，细胞器遗传群与地理分布相关。荚膜梭菌细胞器基因组与野生Corchorus的遗传关联性很高，这表明荚膜梭菌可能来自非洲。这项研究还表明，黄麻的细胞器遗传群可以用来追溯现代印度黄麻品种的亲缘关系到大约一百年前在印度种植的一两个地方品种。 （C）2015萨博。由Elsevier B.V.发布。保留所有权利。

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