Genome wide association mapping through 90K SNP array against leaf rust pathogen in bread wheat genotypes under field conditions

Ahmed, Hafiz Ghulam Muhu-Din; Iqbal, Muhammad; Iqbal, Muhammad Arslan; Zeng, Yawen; Ullah, Aziz; Raza, Humayun; Yar, Muhammad Majid; Anwaar, Hafiz Arslan; Zahid, Noosheen; Masroor, Ashir; Ikram, Rao Muhammad

doi:10.1016/j.jksus.2021.101628

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Cited by 7 publications

References 22 publications

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Dissecting genetic variation and association mapping for agro-morphological traits under high temperature stress in pea (Pisum sativum L.)

Zanetta,

Gali,

Rafii

et al. 2024

Euphytica

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Dissecting genetic variation and association mapping for agro-morphological traits under high temperature stress in pea (Pisum sativum L.)

Zanetta,

Gali,

Rafii

et al. 2024

Euphytica

View full text Add to dashboard Cite

Characterization of brown rust resistance in bread wheat using yield related morphological indices

Iqbal,

Alam,

Iqbal

et al. 2024

Genet Resour Crop Evol

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Identification of leaf rust resistance loci in hard winter wheat using genome-wide association mapping

Lakkakula,

Kolmer,

Sharma

et al. 2024

Preprint

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Leaf rust, caused by Puccinia triticina (Pt), is a serious constraint to wheat production. Developing resistant varieties is the best approach to managing this disease. Wheat leaf rust resistance (Lr) genes have been classified into either all-stage resistance (ASR) or adult-plant resistance (APR). The objectives of this study were to identify sources of leaf rust resistance in contemporary U.S. hard winter wheat (HWW) and to dissect the genetic basis underlying leaf rust resistance in HWW. A panel of 732 elite HWW genotypes was evaluated for response to U.S. Pt races at the seedling stage and at the adult plant stage in leaf rust nurseries in Oklahoma, Texas, and Kansas. Further, the panel was genotyped using Multiplex Restriction Amplicon Sequencing (MRA-Seq) and DNA markers linked to the known ASR genes Lr18, Lr19, Lr21, Lr24, Lr37, and Lr42 and APR genes Lr34, Lr46, Lr67, Lr68, Lr77, and Lr78. Single nucleotide polymorphism (SNP) markers derived from MRA-Seq, DNA markers linked to the known Lr genes, and the phenotypic data were used for genome-wide association study (GWAS) to identify markers associated with leaf rust response. Gene postulation based on leaf rust reactions, DNA markers, and GWAS suggested the presence of Lr1, Lr2a, Lr10, Lr14a, Lr16, Lr18, Lr19, Lr21, Lr24, Lr26, Lr34, Lr37, Lr39, Lr42, Lr46, Lr68, Lr77, and Lr78 in the HWW panel. The GWAS identified 59 SNPs significantly associated with leaf rust response, of which 20 were likely associated with novel resistance loci and can be used to enhance wheat leaf rust resistance.

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Genome wide association mapping through 90K SNP array against leaf rust pathogen in bread wheat genotypes under field conditions

Cited by 7 publications

References 22 publications

Dissecting genetic variation and association mapping for agro-morphological traits under high temperature stress in pea (Pisum sativum L.)

Dissecting genetic variation and association mapping for agro-morphological traits under high temperature stress in pea (Pisum sativum L.)

Characterization of brown rust resistance in bread wheat using yield related morphological indices

Identification of leaf rust resistance loci in hard winter wheat using genome-wide association mapping

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