Identification of Three Novel QTLs Associated with Yellow Rust Resistance in Wheat ( Triticum aestivum L.) Anong-179/Khaista-17 F 2 Population

Muhammad Saeed, Farhan Ullah, Liaqat Shah, Waqas Ahmad, Murad Ali, Fazal Munsif, Ahmad Zubair, Muhammad Ibrahim, Syed Mushtaq Ahmed Shah, Hammad Uddin, Chen Can, Si Hongqi and Ma Chuanxi
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Muhammad Saeed: School of Agronomy, Anhui Agricultural University, Hefei 230036, China
Farhan Ullah: School of Agronomy, Anhui Agricultural University, Hefei 230036, China
Liaqat Shah: Department of Agriculture, Mir Chakar Khan Rind University, Sibi 82000, Pakistan
Waqas Ahmad: Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar 25130, Pakistan
Murad Ali: Cereal Crop Research Institute, Pirsabak Nowshera 24100, Pakistan
Fazal Munsif: Department of Agronomy, Amir Muhammad Khan Campus, The University of Agriculture Peshawar, Mardan 23200, Pakistan
Ahmad Zubair: Agricultural Research Institute, Tarnab Peshawar 24330, Pakistan
Muhammad Ibrahim: Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar 25130, Pakistan
Syed Mushtaq Ahmed Shah: Mir Chakar Khan Rind University MCKRU, Luni Road, Sibi Baluchistan 82100, Pakistan
Hammad Uddin: Department of Plant Breeding and Genetics, The University of Agriculture, Peshawar 25130, Pakistan
Chen Can: School of Agronomy, Anhui Agricultural University, Hefei 230036, China
Si Hongqi: School of Agronomy, Anhui Agricultural University, Hefei 230036, China
Ma Chuanxi: School of Agronomy, Anhui Agricultural University, Hefei 230036, China

Sustainability, 2022, vol. 14, issue 12, 1-15

Abstract: Wheat yellow rust (YR) caused by Puccinia striiformis is lethal for the leaf photosynthetic process, which substantially affects yield components and ultimately causes drastic yield reduction. The current study aimed to identify all-stage YR resistance linked QTLs in the best cross-combination. Experimental materials were phenotyped for disease severity in YR-hot spot area at Cereal Crops Research Institute, Pirsabak Pakistan in Khyber Pakhtunkhwa province in 2019 and 2020 and 2020 and 2021 Rabi seasons. The AN179 × KS17 was found to be the best cross combination, which showed high resistance to YR, whereas crosses AN179 × PK15 and PR129 × PK15 demonstrated susceptibility to YR with high disease severity. The recombinant inbred lines (RIL) F 2 wheat population Annong-179/Khaista-17 demonstrated highly desirable YR resistance and yield component traits. Simple sequence repeat (SSR) markers were used to genotype the RIL population and their parents. Three novel QTLs linked to all-stage YR resistance were found on chromosomes 2BS, 3BS and 6BS, which explained 1.24, 0.54, and 0.75 phenotypic variance, respectively. Incorporation of the newly identified novel YR-resistance associated QTLs into hybridization wheat breeding program could be effective for marker-assisted selection of the improved and sustainable resistance.

Keywords: Puccinia striiformis; disease severity; linkage analysis; recombinant inbred lines; heritability (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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