A SNP-Enabled Assessment of Genetic Diversity, Evolutionary Relationships and the Identification of Candidate Genes in Chrysanthemum.
A SNP-Enabled Assessment of Genetic Diversity, Evolutionary Relationships and the Identification of Candidate Genes in Chrysanthemum.
复制标题
菊花遗传多样性、进化关系和候选基因鉴定的 SNP 评估。
DOI：
10.1093/gbe/evw270
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发表时间：
2016-12-01
影响因子：
3.3
通讯作者：
Chen F
中科院分区：
文献类型：
--
作者：
Chong X;Zhang F;Wu Y;Yang X;Zhao N;Wang H;Guan Z;Fang W;Chen F
经济上重要的观赏品种菊花品种已经培育，以适应一些市场利基，但遗传基础和各种栽培类型之间的进化关系知之甚少。在这里，一个基于DNA标记的分析199菊花条目代表每一个五种栽培类型。定义了一组与至少5%的次要等位基因频率相关的> 90，000个单核苷酸多态性（SNP），并用于进行与表型分类良好对应的系统发育分析。结果表明，小花型喷切菊（SCC）和盆地菊（PGC）与野生祖先种（WC）的亲缘关系较近，而大花型拔芽切菊（DCC）和传统菊（TC）与野生祖先种的亲缘关系较近，其中PGC型与野生祖先种的亲缘关系最近。大约550个遗传区域似乎经历了选择，在分离的盆栽和地被类型从拔芽切割类型，和盆栽和地被类型之间的传统类型。全基因组关联分析表明，6个基因中的7个SNPs可预测3个重要性状（舌状花型、栽培型和花形），但与花色无关联。这项研究为一些关键观赏性状的进化关系、种群结构和遗传基础提供了新的见解。
Varieties of the economically important ornamental species chrysanthemum have been bred to fit a number of market niches, but the genetic basis and evolutionary relationships among various cultivated types are poorly understood. Here, a DNA marker-based analysis of 199 chrysanthemum entries representing each of the five cultivated types is presented. A set of >90,000 single nucleotide polymorphisms (SNPs) associated with a minor allele frequency of at least 5% was defined, and used to perform a phylogenetic analysis which corresponded well with the phenotypic classification. The analysis revealed that the small-flowered types, spray cut chrysanthemum (SCC) and potted and ground chrysanthemum (PGC), are more closely related to the wild progenitor species (WC) than are the large-flowered ones, disbud cut chrysanthemum (DCC) and traditional chrysanthemum (TC); and the PGC type was closest. Some 550 genetic regions appeared to have experienced selection in the separation of potted and ground-cover types from disbud cut types, and that between potted and ground-cover types from traditional types. A genome-wide association analysis revealed that seven SNPs lying within six genes were predictive of three important traits (ray floret type, cultivated type and flower shape), but no association with flower color was detected. The study has provided a number of novel insights into evolutionary relationships, the population structure and the genetic basis of some key ornamental traits.
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影响因子：
10.7
作者：
Moura AE;Janse van Rensburg C;Pilot M;Tehrani A;Best PB;Thornton M;Plön S;de Bruyn PJ;Worley KC;Gibbs RA;Dahlheim ME;Hoelzel AR
通讯作者：
Hoelzel AR
影响因子：
5.8
作者：
Bradbury, Peter J.;Zhang, Zhiwu;Buckler, Edward S.
通讯作者：
Buckler, Edward S.
影响因子：
4.8
作者：
Menges, M;Hennig, L;Murray, JAH
通讯作者：
Murray, JAH
切花菊（Chrysanthemum morifolium Ramat.）遗传多样性、种群结构及关联分析
影响因子：
3.1
作者：
Li, Pirui;Zhang, Fei;Chen, Fadi
通讯作者：
Chen, Fadi
影响因子：
7.2
作者：
Gou, Mingyue;Su, Nan;Wang, Guoying
通讯作者：
Wang, Guoying