数字农科院2.0

Improved pea reference genome and pan-genome highlight genomic features and evolutionary characteristics

文献类型： 外文期刊

作者： Yang T.; Liu R.; Luo Y.; Hu S.; Wang D.; Wang C.; Pandey M.K.; Ge S.; Xu Q.; Li N.; Li G.; Huang Y.; Saxena R.K.; Ji Y.; Li M.; Yan X.; He Y.; Liu Y.; Wang X.; Xiang C.; Varshney R.K.; Ding H.; Gao S.; Zong X.

作者机构：

期刊名称： Nature Genetics

ISSN： 1061-4036

年卷期： 2022 年

页码：

收录情况： SCIE（2022版）

摘要： Complete and accurate reference genomes and annotations provide fundamental resources for functional genomics and crop breeding. Here we report a de novo assembly and annotation of a pea cultivar ZW6 with contig N50 of 8.98 Mb, which features a 243-fold increase in contig length and evident improvements in the continuity and quality of sequence in complex repeat regions compared with the existing one. Genome diversity of 118 cultivated and wild pea demonstrated that Pisum abyssinicum is a separate species different from P. fulvum and P. sativum within Pisum. Quantitative trait locus analyses uncovered two known Mendel’s genes related to stem length (Le/le) and seed shape (R/r) as well as some candidate genes for pod form studied by Mendel. A pan-genome of 116 pea accessions was constructed, and pan-genes preferred in P. abyssinicum and P. fulvum showed distinct functional enrichment, indicating the potential value of them as pea breeding resources in the future. © 2022, The Author(s).

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