Genome-wide characterization of two Aubrieta taxa: Aubrieta canescens subsp. canescens and Au. macrostyla (Brassicaceae)
文献类型： 外文期刊
第一作者： Kaya, Yasin
作者： Kaya, Yasin;Aydin, Zubeyde Ugurlu;Donmez, Ali A.;Cai, Xu;Wang, Xiaowu
作者机构：
关键词： Arabideae; Arabis; Aubrieta; Brassicaceae; genome evolution; whole-genome sequencing
期刊名称：AOB PLANTS （ 影响因子：3.138； 五年影响因子：3.472 ）
ISSN： 2041-2851
年卷期： 2022 年 14 卷 5 期
页码：
收录情况： SCI
摘要： Aubrieta canescens complex is divided into two subspecies, Au. canescens subsp. canescens, Au. canescens subsp. cilicica and a distinct species, Au. macrostyla, based on molecular phylogeny. We generated a draft assembly of Au. canescens subsp. canescens and Au. macrostyla using paired-end shotgun sequencing.This is the first attempt at genome characterization for the genus. In the presented study, similar to 165 and similar to 157 Mbp of the genomes of Au. canescens subsp. canescens and Au. macrostyla were assembled, respectively, and a total of 32 425 and 31 372 gene models were predicted in the genomes of the target taxa, respectively. We corroborated the phylogenomic affinity of taxa with some core Brassicaceae species (Clades A and B) including Arabis alpina. The orthology-based tree suggested that Aubrieta species differentiated from A. alpina 1.3-2.0 mya (million years ago). The genome-wide syntenic comparison of two Aubrieta taxa revealed that Au. canescens subsp. canescens (46 %) and Au. macrostyla (45 %) have an almost identical syntenic gene pair ratio. These novel genome assemblies are the first steps towards the chromosome-level assembly of Au. canescens and understanding the genome diversity within the genus.
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