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bULKED SEGREGANT RNA SEQUENCING(bSR-SEQ)IDENTIFIES A NOVEL ALLELE ASSOCIATED WITH WEEPING TRAITS IN PRUNUS MUME

Frontiers of Agricultural Science and Engineering 2021年第2期8卷 196-214页

作者： Xiaokang ZHUO Tangchun ZHENG Zhiyong ZHANG Suzhen LI Yichi ZHANG Lidan SUN Weiru YANG Jia WANG Tangren CHENG Qixiang ZHANG beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular breeding National Engineering Research Center for FloricultureBeijing Laboratory of Urban and Rural Ecological EnvironmentEngineering Research Center of Landscape Environment of Ministry of EducationKey Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of EducationSchool of Landscape ArchitectureBeijing Forestry UniversityBeijing 100083China beijing Advanced Innovation Center for Tree breeding by Molecular Design Beijing Forestry UniversityBeijing 100083China.

Weeping species are used both as ornamental plants and for breeding dwarf plant ***,exploration of casual genes controlling weeping traits is rather ***,we identified individuals with contrasting phenotypes from an Fx bi-parental mapping population of Prunus mume which was developed from a cross between the upright cultivar/Liuban,and the weeping cultivar'Fentai Chuizhi'.bulked segregant RNA sequencing was used and five QTLs on chromosome 7 were *** Pm024074(PmilGT72b3)allele,belonging to the UDP-glycosyltransferase superfamily containing the coniferyl-alcohol glucosyltransferase domain,was identified in a genomic region overlapping with a previously identified QTL;and had a synonymous transition of T66(upright)to C(weeping)in the coding sequence and a 470-bp deletion in the promoter ***024074 had exceptionally high expression in buds and stems of weeping *** correlation network analysis indicates that genes neighboring Pm024074 were significantly associated with plant *** addition,a reliable single nucleotide polymorphism marker was developed based on the variation in the Pm024074 gene,providing precise marker-assisted breeding for weeping *** study provides insights into the genetic mechanism governing the weeping trait in ***,and indicates potential applications for the manipulation of tree architecture.

关键词： bSR-seq pmugt72b3 Prunus mume UDP-glycosyltransferase weeping shoots WGCNA

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