Genetic Diversity and Population Structure Analysis of Hollyhock (Alcea rosea Cavan) Using High-Throughput Sequencing

文献类型： 外文期刊

第一作者： Wang, Yue

作者： Wang, Yue;Chen, Yanli;Wang, Yue;Zhao, Sheng;Chen, Peng;Liu, Yongkang;Ma, Zhigang;Malik, Waqar Afzal;Zhu, Zhenghang;Chang, Yuxiao;Peng, Zhenyu;Lu, Haorong;Peng, Zhenyu;Lu, Haorong

作者机构：

关键词： hollyhock; genetic diversity; population structure; whole-genome re-sequencing; SNP

期刊名称：HORTICULTURAE （ 影响因子：3.1； 五年影响因子：3.4 ）

ISSN：

年卷期： 2023 年 9 卷 6 期

页码：

收录情况： SCI

摘要： Hollyhock (Alcea rosea (Linn). Cavan) is an herbaceous flowering plant with significant applications in urban greening, soil remediation, and traditional medicine. However, its genetic diversity and molecular characteristics at the population level have not been explored yet. Here, the phenotypic and genetic diversity of 162 hollyhock accessions from China revealed extensive variation among 11 traits and strong correlations between several quantitative traits. Whole-genome re-sequencing of 32 randomly chosen accessions identified 10,468,760 core single-nucleotide polymorphisms (SNPs) distributed evenly across the genome, except for on chromosome 21, and the average nucleotide diversity (& pi;) was calculated to be 0.00397. Principal component analysis showed that these 32 accessions could be divided into four subpopulations, which was in agreement with the population structure analysis, and the subpopulations were strongly correlated with geographic location. A neighbor-joining dendrogram displayed similar clusters, except for accessions HuB25 and HLJ28, which formed two separate clusters. Our findings illuminate the genetic diversity in hollyhock and provide valuable information for hollyhock breeding.

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