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ORIGINAL RESEARCH article

Front. Plant Sci.
Sec. Plant Systematics and Evolution
Volume 15 - 2024 | doi: 10.3389/fpls.2024.1368861

A chromosome-level genome assembly of Chinese quince (Pseudocydonia sinensis)

Provisionally accepted
ying yang ying yang jinfeng liu jinfeng liu Xianfeng Jiang Xianfeng Jiang *
  • Dali University, Dali, Yunnan, China

The final, formatted version of the article will be published soon.

    Pseudocydonia sinensis, also known as Chinese quince, is a perennial shrub or small tree highly valued for its edibility and medicinal properties. This study presents the first chromosome-level genome assembly of P. sinensis, achieved using HiFi sequencing and Hi-C scaffolding technology. The assembly resulted in a high-quality genome of 576.39 Mb in size. The genome was anchored to 17 pseudo-chromosomes, with a contig N50 of 27.6 Mb and a scaffold N50 of 33.8 Mb. Comprehensive assessment using BUSCO, CEGMA and BWA tools indicates the high completeness and accuracy of the genome assembly. Our analysis identified 116 species-specific genes, 1196 expanded genes and 1109 contracted genes. Additionally, the distribution of 4DTv values suggests that the most recent duplication event occurred before the divergence of P. sinensis from both Chaenomeles pinnatifida and Pyrus pyrifolia. The assembly of this high-quality genome provides a valuable platform for the genetic breeding and cultivation of P. sinensis, as well as for the comparison of the genetic complexity of P. sinensis with other important crops in the Rosaceae family.

    Keywords: Comparative genomic analysis, Chaenomeles sinensis, Chinese quince, Pseudocydonia sinensis, Genome

    Received: 11 Jan 2024; Accepted: 06 May 2024.

    Copyright: © 2024 yang, liu and Jiang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Xianfeng Jiang, Dali University, Dali, 671000, Yunnan, China

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