ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2010
Pleiotropy of the branching locus (B) masks linked and unlinked quantitative trait loci affecting seed traits in sunflower.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 37 citations in OpenAlex.
- Identification of quantitative trait loci (QTLs) for key cheese making phenotypes in the blue-cheese mold Penicillium roqueforti.PLoS genetics · 2025Article
- Integrative GWAS and transcriptomic analyses reveal regulatory genes controlling shoot branching in sunflower.Frontiers in plant science · 2025Article
- Maximizing efficiency in sunflower breeding through historical data optimization.Plant methods · 2024Article
- Genetic Analysis of Domestication Parallels in Annual and Perennial Sunflowers (Frontiers in plant science · 2020Article
- Seed and floret size parameters of sunflower are determined by partially overlapping sets of quantitative trait loci with epistatic interactions.Molecular genetics and genomics : MGG · 2020Article
- Review
- Article
- Genomic Prediction of Sunflower Hybrids Oil Content.Frontiers in plant science · 2017Article
- Sunflower Hybrid Breeding: From Markers to Genomic Selection.Frontiers in plant science · 2017Review
- Molecular evolution of candidate genes for crop-related traits in sunflower (Helianthus annuus L.).PloS one · 2014Article
- Abscisic acid regulates axillary bud outgrowth responses to the ratio of red to far-red light.Plant physiology · 2013Article
- Association mapping and the genomic consequences of selection in sunflower.PLoS genetics · 2013Article
- Genetic analysis of phytosterol content in sunflower seeds.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2012Article
- The genetics of domestication of yardlong bean, Vigna unguiculata (L.) Walp. ssp. unguiculata cv.-gr. sesquipedalis.Annals of botany · 2012Article
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9 authors at 4 institutions in 3 countries.
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Abstract
The discovery of unbranched, monocephalic natural variants was pivotal for the domestication of sunflower (Helianthus annuus L.). The branching locus (B), one of several loci apparently targeted by aboriginal selection for monocephaly, pleiotropically affects plant, seed and capitula morphology and, when segregating, confounds the discovery of favorable alleles for seed yield and other traits. The present study was undertaken to gain deeper insights into the genetics of branching and seed traits affected by branching. We produced an unbranched hybrid testcross recombinant inbred line (TC-RIL) population by crossing branched (bb) and unbranched (BB) RILs to an unbranched (BB) tester. The elimination of branching concomitantly eliminated a cluster of B-linked seed trait quantitative trait loci (QTL) identified by RIL per se testing. We identified a seed oil content QTL linked in repulsion and a 100-seed weight QTL linked in coupling to the B locus and additional unlinked QTL, previously masked by B-locus pleiotropy. Genomic segments flanking the B locus harbor multiple loci for domestication and post-domestication traits, the effects of which are masked by B-locus pleiotropy in populations segregating for branching and can only be disentangled by genetic analyses in unbranched populations. QTL analyses of NILs carrying wild B alleles substantiated the pleiotropic effects of the B locus. The effect of the B locus on branching was masked by the effects of wild alleles at independent branching loci in hybrids between monocephalic domesticated lines and polycephalic wild ecotypes; hence, the B locus appears to be necessary, but not sufficient, for monocephaly in domesticated sunflower.
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