Long-read genome assembly and genetic architecture of fruit shape in the bottle gourd

文献类型： 外文期刊

第一作者： Xu, Pei

作者： Xu, Pei;Wang, Ying;Wu, Xiaohua;Wu, Xinyi;Hu, Yaowen;Wang, Baogen;Li, Yanwei;Lu, Zhongfu;Li, Guojing;Xu, Pei;Li, Guojing;Xu, Pei;Li, Guojing;Sun, Fengshuo;Wu, Rongling;Jiang, Libo;Gao, Qiang;Liang, Chengzhi;Wu, Rongling;Du, Huilong;Gao, Qiang;Liang, Chengzhi;Xing, Nailin;Huang, Yunping;Yang, Liming;Tao, Ye;Xu, Pei

作者机构：

关键词： bottle gourd; fruit shape; functional mapping; genome; geometric morphometrics; long-read sequencing

期刊名称：PLANT JOURNAL （ 影响因子：6.486； 五年影响因子：7.666 ）

ISSN： 0960-7412

年卷期： 2021 年 107 卷 3 期

页码：

收录情况： SCI

摘要： The bottle gourd (Lagenaria siceraria, Cucurbitaceae) is an important horticultural crop exhibiting tremendous diversity in fruit shape. The genetic architecture of fruit shape variation in this species remains unknown. We assembled a long-read-based, high-quality reference genome (ZAAS_Lsic_2.0) with a contig N50 value over 390-fold greater than the existing reference genomes. We then focused on dissection of fruit shape using a one-step geometric morphometrics-based functional mapping approach. We identified 11 quantitative trait loci (QTLs) responsible for fruit shape (fsQTLs), reconstructed their visible effects and revealed syntenic relationships of bottle gourd fsQTLs with 12 fsQTLs previously reported in cucumber, melon or watermelon. Homologs of several well-known and newly identified fruit shape genes, including SUN, OFP, AP2 and auxin transporters, were comapped with bottle gourd QTLs.

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