Marker-trait association of Russian wheat aphid (Diuraphisnoxia) resistance in the global diversity set of wild barely
- سال انتشار: 1401
- محل انتشار: دوفصلنامه اصلاح مولکولی گیاهان، دوره: 10، شماره: 2
- کد COI اختصاصی: JR_JPMB-10-2_004
- زبان مقاله: انگلیسی
- تعداد مشاهده: 122
نویسندگان
Faculty of Agriculture, Department of Agronomy and Plant Breeding, Ilam University, Ilam, Iran
Department of Agronomy and Plant Breeding, Ilam University, Ilam, Iran
Faculty of Agriculture, Department of Agronomy and Plant Breeding, Ilam University, Ilam, Iran
Department of Agriculture, Payam Noor University (PNU), Tehran, Iran
چکیده
Russian wheat aphid (RWA, Diuraphis noxia Kurdjumov), a common pest on barley around the world, can severely damage barley yield and grain quality. The present study aimed to identify simple sequence repeat markers associated with RWA resistance in wild barley (Hordeum vulgare subsp. spontaneum). A panel of ۳۰ wild barely accessions was selected from the ICARDA gene bank and Iran to represent ۱۰ Asia countries scattered along the natural geographic distribution of the species for RWA resistance. Five traits including leaf chlorosis, leaf rolling, chlorophyll a, b, and total chlorophyll concentration were evaluated. Fourteen SSR markers were used to study genetic diversity. The relationship of ۵۲ polymorphic SSR markers with the associated RWA resistance traits was tested using general linear model (GLM) and mixed linear model (MLM) approaches. The population structure analysis revealed seven subpopulations in the entire collection (K=۷). Eleven trait marker-trait associations (MTA) were identified on chromosomes ۱H, ۲H, ۳H, ۴H, and ۷H. Markers Bmag۰۰۷, Bmag۶, Bmac۰۳۹۹, Bmag۰۱۲۵, and EBmac۰۷۰۱ which exhibited significant associations with RWA resistance traits. All five markers were associated with traits in both GLM and MLM analyzes. This study identified novel genomic regions putatively linked with RWA resistance traits, which could be further investigated for shedding light on the genetic architecture of RWA resistance in barley. The findings could be useful for using the RWA resistance accessions of H. spontaneum as parents for breeding barley cultivars.کلیدواژه ها
Association analysis, seedling resistance, SSR marker, subpopulationsاطلاعات بیشتر در مورد COI
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