Non-Mendelian inheritance of gene amplification-based resistance to glyphosate in Hordeum glaucum (barley grass) from South Australia

被引：3
作者：
Adu-Yeboah, Patricia [1 ]
Malone, Jenna M. [1 ]
Gill, Gurjeet [1 ]
Preston, Christopher [1 ]
机构：
[1] Univ Adelaide, Sch Agr Food & Wine, PMB1, Glen Osmond, SA 5064, Australia
来源：
PEST MANAGEMENT SCIENCE | 2021年 / 77卷 / 10期
关键词：
EPSPS; gene amplification; copy number; glyphosate resistance; inheritance; non-Mendelian; HERBICIDE RESISTANCE; LOLIUM-PERENNE; EVOLUTION; MECHANISMS; SYNTHASE; COPIES; PLANTS;
D O I：
10.1002/ps.6518
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
BACKGROUND Hordeum glaucum Steud. is an important grass weed species in South Australia that has evolved resistance to glyphosate. This study investigated the mode of inheritance of glyphosate resistance in this species. RESULTS Hand-pollination of glyphosate susceptible and resistant populations generated two F-1 individuals, selfed to yield F-2 progenies. In dose-response experiments, the F-2 progenies showed intermediate response between the two parent populations. High variation in EPSPS gene copies was observed among F-2 individuals, with some individuals possessing more gene copies than the resistant parent population. No evidence of a Mendelian single-gene pattern of inheritance was observed. CONCLUSION Inheritance of gene amplification in H. glaucum is non-Mendelian.
引用
收藏
页码：4298 / 4302
页数：5
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