QTL mapping, whole genome resequencing, and marker-assisted selection provide basics of early flowering in pumpkin
文献类型： 外文期刊
作者： Abbas, Hafiz Muhammad Khalid 1 ; Zhou, Yang Yang 1 ; Huang, He Xun 1 ; ul Qamar, Muhammad Tahir 3 ; Wang, Man Man 1 ; Lu, Sen 1 ; Xu, Congping 2 ; Liu, Zhanshu 1 ; Wu, Ting Quan 1 ; Zhong, Yu Juan 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Vegetable Res Inst, Guangdong Key Lab New Technol Res Vegetables, Guangzhou 510640, Peoples R China
2.Hainan Univ, Coll Trop Crops, Haikou, Hainan, Peoples R China
3.Guangxi Univ, Coll Life Sci & Technol, Nanning, Peoples R China
关键词： Cucurbita moschata; flowering locus T-like 2 (FLT2); flowering locus T-like protein (FLT); flowering nodes; InDel; QTLs
期刊名称：PLANT BREEDING （ 影响因子：2.536； 五年影响因子：2.306 ）
ISSN： 0179-9541
年卷期： 2022 年 141 卷 2 期
页码：
收录情况： SCI
摘要： Finding the quantitative trait loci (QTLs) and uncovering the genes controlling early flowering in pumpkin are the basic needs to select appropriate varieties for cultivation. Two QTLs related to first female flowering node (FFFN) and four QTLs related to first male flowering node (FMFN) were detected based on high-density genetic map of pumpkin. Based on annotation information, two candidate genes, flowering locus T-like protein (FLT) associated with FFFN on chr10 and flowering locus T-like 2 (FLT2) associated with FMFN on chr11, were identified which were the homologues of flowering time switching gene, flowering Locus T (FT), in different crops. Seven different insertion-deletions (InDels) in promoter regions of FLT and FLT2 were identified by the analysis of wholegenome resequencing data of parental lines. Our results suggested that FLT and FLT2 are candidate genes for controlling FFFN and FMFN traits in pumpkin, respectively. Two insertion-deletion molecular markers were developed to distinguish the lower flowering node F-2 individuals. This research will provide the theoretical and practical basis for the selection and cultivation of early flowering pumpkin varieties.
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