The haplotype-resolved T2T reference genome highlights structural variation underlying agronomic traits of melon
Li, Guoli (China Agricultural University. College of Horticulture)
Tang, Lingli (Chinese Academy of Agricultural Sciences. Zhongyuan Research Center)
He, Yuhua (Chinese Academy of Agricultural Sciences. National Nanfan Research Institute)
Xu, Yongyang (Chinese Academy of Agricultural Sciences. National Nanfan Research Institute)
Bendahmane, Abdelhafid (University of Paris-Saclay. Institute of Plant Sciences Paris-Saclay)
Garcia-Mas, Jordi (Centre de Recerca en Agrigenòmica)
Lin, Tao (China Agricultural University. College of Horticulture)
Zhao, Guangwei (Chinese Academy of Agricultural Sciences. Zhongyuan Research Center)

Data:	2023
Resum:	Melon (Cucumis melo L. ) is an important vegetable crop that has an extensive history of cultivation. However, the genome of wild and semi-wild melon types that can be used for the analysis of agronomic traits is not yet available. Here we report a chromosome-level T2T genome assembly for 821 (C. melo ssp. agrestis var. acidulus), a semi-wild melon with two haplotypes of ~373 Mb and ~364 Mb, respectively. Comparative genome analysis discovered a significant number of structural variants (SVs) between melo (C. melo ssp. melo) and agrestis (C. melo ssp. agrestis) genomes, including a copy number variation located in the ToLCNDV resistance locus on chromosome 11. Genome-wide association studies detected a significant signal associated with climacteric ripening and identified one candidate gene CM_ac12g14720. 1 (CmABA2), encoding a cytoplasmic short chain dehydrogenase/reductase, which controls the biosynthesis of abscisic acid. This study provides valuable genetic resources for future research on melon breeding.
Ajuts:	European Commission 101095736
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Publicat a:	Horticulture research, Vol. 10, Issue 10 (October 2023) , art. uhad182, ISSN 2052-7276

DOI: 10.1093/hr/uhad182
PMID: 37885818

13 p, 2.0 MB

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