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A high-quality assembled genome of a representative peach landrace, 'Feichenghongli', and analysis of distinct late florescence and narrow leaf traits

文献类型： 外文期刊

作者： Li, Miao 1 ; Li, Jian 1 ; Nie, Peixian 1 ; Li, Guixiang 1 ; Liu, Wei 1 ; Gong, Qingtao 1 ; Dong, Xiaomin 1 ; Gao, Xiaolan 1 ; Chen, Wenyu 2 ; Zhang, Anning 1 ;

作者机构： 1.Shandong Inst Pomol, Taian City 271000, Shandong, Peoples R China

2.Feicheng peach Ind Dev Ctr, Feicheng City 271600, Shandong, Peoples R China

关键词： Peach landraces; Genome assembly; Comparative genomics; Gene family; Late florescence; Narrow leaf

期刊名称：BMC PLANT BIOLOGY （ 影响因子：5.3； 五年影响因子：5.9 ）

ISSN： 1471-2229

年卷期： 2023 年 23 卷 1 期

页码：

收录情况： SCI

摘要： BackgroundPeach (Prunus persica L. Batsch) is one of the most popular fruits worldwide. Although the reference genome of 'Lovell' peach has been released, the diversity of genome-level variations cannot be explored with one genome. To detect these variations, it is necessary to assemble more genomes.ResultsWe sequenced and de novo assembled the genome of 'Feichenghongli' (FCHL), a representative landrace with strict self-pollination, which maintained the homozygosity of the genome as much as possible. The chromosome-level genome of FCHL was 239.06 Mb in size with a contig N50 of 26.93 Mb and only 4 gaps at the scaffold level. The alignment of the FCHL genome with the reference 'Lovell' genome enabled the identification of 432535 SNPs, 101244 insertions and deletions, and 7299 structural variants. Gene family analysis showed that the expanded genes in FCHL were enriched in sesquiterpenoids and triterpenoid biosynthesis. RNA-seq analyses were carried out to investigate the two distinct traits of late florescence and narrow leaves. Two key genes, PpDAM4 and PpAGL31, were identified candidates for the control of flower bud dormancy, and an F-box gene, PpFBX92, was identified as a good candidate gene in the regulation of leaf size.ConclusionsThe assembled high-quality genome could deepen our understanding of variations among diverse genomes and provide valuable information for identifying functional genes and improving the molecular breeding process.

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