ArticleBMC plant biology2025
Identification of a locus on Agropyron cristatum chromosome 6P that interacts with wheat genes to produce yellow-green leaves.
Article in BMC plant biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundWide hybridization is crucial for broadening the genetic basis of common wheat. Agropyron cristatum (2n = 4x = 28, PPPP), a wild relative of wheat, harbors numerous favorable genes for genetic improvement. The variability related to the expression of alien genes in different wheat backgrounds is a crucial factor that limits the effective utilization of these genes.
resultsIn this study, the introduction of chromosome 6P from A. cristatum into different wheat backgrounds resulted in different leaf colors: green in plants with the Fukuho background and yellow‒green in plants with the Jimai 22 background. Genetic analysis suggested that yellow‒green leaves were caused by gene interactions between chromosome 6P and genes from the Jimai 22 background, which negatively affected agronomic traits. To determine the locus on chromosome 6P responsible for yellow‒green leaves, six wheat-A. cristatum deletion lines and five wheat-A. cristatum translocation lines were crossed with Jimai 22 to produce F
conclusionsA locus on chromosome 6P of A. cristatum that caused a yellow-green leaf in the Jimai 22 background was mapped to chromosome 6PS (0.81-1.00). This study provides valuable germplasm for the study of leaf color and guidance for the use of valuable genes on A. cristatum chromosome 6P.
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