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ARS Home » Plains Area » Fargo, North Dakota » Edward T. Schafer Agricultural Research Center » Cereal Crops Research » Research » Publications at this Location » Publication #399505

Research Project: Improvement of Biotic Stress Resistance in Durum and Hard Red Spring Wheat Using Genetics and Genomics

Location: Cereal Crops Research

Title: Identification of novel QTLs associated with yield components in an intravarietal hard red spring wheat population

item KUMARI, POOJA - North Dakota State University
item PETERS HAUGRUD, AMANDA - Oak Ridge Institute For Science And Education (ORISE)
item Xu, Steven
item ZHANG, QIJUN - North Dakota State University
item GREEN, ANDREW - North Dakota State University
item Faris, Justin

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 10/27/2022
Publication Date: 12/1/2022
Citation: Kumari, P., Peters Haugrud, A., Xu, S.S., Zhang, Q., Green, A., Faris, J.D. 2022. Identification of novel QTLs associated with yield components in an intravarietal hard red spring wheat population [abstract]. Plant and Animal 30 Conference . Poster No. PE0488.

Interpretive Summary:

Technical Abstract: Wheat (Triticum aestivum L.) is one of the most important cereal crops in the world, and global demand is projected to increase by 60% by 2050. To meet this demand, significant increases in grain yield and agronomic performance are needed. Here, we developed a biparental population consisting of 1,578 RILs derived from the elite North Dakota hard red spring wheat (HRSW) variety ’Faller’ and the Chinese HRSW variety ’Jingiang 5.’ A subset of the population consisting of 190 lines was evaluated under greenhouse conditions for agronomic traits including days to heading, days to maturity, and plant height, and for yield component traits including tiller number, spikelet and grain number, grain weight, and seed morphology. We genotyped the population using the Illumina iSelect 90k wheat SNP array, and a total of 1939 polymorphic SNPs were obtained and used to develop genetic linkage maps. A total of 15 QTLs associated with yield component traits were identified. A prominent QTL on chromosome 1B was found to be associated with six major yield traits including thousand kernel weight, grain weight per spike, kernel area, kernel width, kernel circularity, and kernel length:width ratio. A novel QTL associated with days to heading was also identified on chromosome 7B. In the future, we intend to determine if these QTLs are expressed under field conditions as well. These QTLs may be useful for incorporation into elite HRSW germplasm and breeding lines to develop earlier maturing, high-yielding varieties.