Structure characteristics of mutation sites in two waxy alleles from Yunnan waxy maize (Zea mays L. var. certaina Kulesh) landraces
文献类型: 外文期刊
作者: Sun, Tingting 1 ; Wu, Xiaoyang 1 ;
作者机构: 1.Yunnan Acad Agr Sci, Biotechnol & Germplasm Resources Inst, Kunming, Peoples R China
期刊名称:PLOS ONE ( 影响因子:3.7; 五年影响因子:3.8 )
ISSN: 1932-6203
年卷期: 2023 年 18 卷 9 期
页码:
收录情况: SCI
摘要: A large number of waxy maize landraces are distributed in Yunnan and surrounding areas, and abundant waxy alleles of different types are distributed in these landraces. The identification of waxy alleles is helpful to the protection and utilization of these waxy landraces. This study introduced structure characteristics of waxy genes from two specific landraces of Yunnan, Zinuoyumi and Myanmar Four-Row Wax. Zinuoyumi has two waxy alleles wx-Cin4 and wx-Cin4-2; Myanmar Four-Row Wax has three waxy alleles wx-D10, wx-Reina and wx-D11. The wx-Cin4-2 and wx-D11 are two types of waxy alleles first reported in this study. The wx-Cin4-2 has two mutation sites, deletion of 30 bp in exon 10, insertion of a 1,267 bp non-long terminal repeat (non-LTR) retrotransposon Cin4 in intron 10, and 13 bp extra sequence were found at 5' end of the Cin4; the mutation site of wx-D11 is a 1,082 bp deletion from exons 11 to 14 of the waxy gene and is replaced with a 72 bp filler sequence. This study enriched the type of waxy allele from Yunnan waxy maize landraces and further discussed the molecular basis for the formation of mutation sites of wx-Cin4-2 and wx-D11.
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