ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2019
Genetic mapping of a major QTL promoting homoeologous chromosome pairing in a wheat landrace.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 15 citations in OpenAlex.
- Genomic introgressions from wild relatives in the wheat genome alter meiotic dynamics in inter-varietal hybrids.The Plant journal : for cell and molecular biology · 2026Article
- Homoeologous pairing and recombination features conferred by Aegilops mutica gene system.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Fine mapping of the reduced height gene Rht22 in tetraploid wheat landrace Jianyangailanmai (Triticum turgidum L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- Applications of In Vitro Tissue Culture Technologies in Breeding and Genetic Improvement of Wheat.Plants (Basel, Switzerland) · 2022Review
- Development, identification, and characterization of blue-grained wheat-Triticum boeoticum substitution lines.Journal of applied genetics · 2020Article
- Chromosome Pairing in Polyploid Grasses.Frontiers in plant science · 2020Review
- The Resurgence of Introgression Breeding, as Exemplified in Wheat Improvement.Frontiers in plant science · 2020Review
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Authors and funding
15 authors at 2 institutions in 1 country.
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Abstract
key messageCommon wheat landrace Kaixian-luohanmai carries a gene(s) that promotes homoeologous chromosome pairing. A major QTL responsible for this effect was mapped to chromosome arm 3AL. Polyhaploid hybrids of a Chinese common wheat landrace Kaixian-luohanmai (KL) and related species show increased levels of chromosome pairing. Over 90% of that pairing is between homoeologous arms of wheat chromosomes, with a very strong preference for pairing between homoeologs from genomes A and D. Wheat-rye pairing was also observed at low frequency. Two mapping populations were created from the hybrids of KL with two wheat genotypes top crossed to rye. Mean chiasmata numbers per plant were used as phenotypic data. Wheat 660 K and 15 K SNP arrays, DArT markers and SSR markers were used for genotyping of the top-cross ABDR hybrids. One major QTL, named QPh.sicau-3A, for increased homoeologous pairing was detected on chromosome arm 3AL, and it was responsible for ca. 16% of the total variation. This QTL was located in the interval 696-725 Mb in the Chinese Spring reference genome. SNP markers closely linked with QPh.sicau-3A were converted to KASP markers and validated for marker-assisted selection.
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