ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2008
Contrasting population genetic structure and gene flow between Oryza rufipogon and Oryza nivara.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed.
- Characterization of the complete chloroplast genome and comparative analysis of the phylogeny and codon usage bias of three Yunnan wild rice species.Frontiers in plant science · 2025Article
- Floral traits underlying mating system differentiation in the wind-pollinated sister speciesAoB PLANTS · 2025Article
- Phenological and morphological variations of Oryza rufipogon and O. nivara in Sri Lanka and their evolutionary implications.Scientific reports · 2024Article
- Relationship Between Genetic and Phenotypic Variations in Natural Populations of Perennial and Biennial Sagebrush.Ecology and evolution · 2024Article
- A genome-wide association study in Indian wild rice accessions for resistance to the root-knot nematode Meloidogyne graminicola.PloS one · 2020Article
- Population genetics and evolutionary history of the wild rice speciesEcology and evolution · 2018Article
- Maintaining their genetic distance: Little evidence for introgression between widely hybridizing species of Geum with contrasting mating systems.Molecular ecology · 2018Article
- Morphological and molecular dissection of wild rices from eastern India suggests distinct speciation between O. rufipogon and O. nivara populations.Scientific reports · 2018Article
- Morphological and Molecular Data Reveal Three Distinct Populations of Indian Wild RiceFrontiers in plant science · 2018Article
- Genome origin, historical hybridization and genetic differentiation in Anthosachne australasica (Triticeae; Poaceae), inferred from chloroplast rbcL, trnH-psbA and nuclear Acc1 gene sequences.Annals of botany · 2017Article
- Yield-enhancing heterotic QTL transferred from wild species to cultivated rice Oryza sativa L.PloS one · 2014Article
- Local differentiation amidst extensive allele sharing in Oryza nivara and O. rufipogon.Ecology and evolution · 2013Article
- Demographic factors shaped diversity in the two gene pools of wild common bean Phaseolus vulgaris L.Heredity · 2013Article
- Generalized buneman pruning for inferring the most parsimonious multi-state phylogeny.Journal of computational biology : a journal of computational molecular cell biology · 2011Article
- Genomic patterns of nucleotide diversity in divergent populations of U.S. weedy rice.BMC evolutionary biology · 2010Article
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6 authors.
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Abstract
The cross compatible wild relatives of crops have furnished valuable genes for crop improvement. Understanding the genetics of these wild species may enhance their further use in breeding. In this study, sequence variation of the nuclear Lhs1 gene was used to investigate the population genetic structure and gene flow of Oryza rufipogon and O. nivara, two wild species most closely related to O. sativa. The two species diverge markedly in life history and mating system, with O. rufipogon being perennial and outcrossing and O. nivara being annual and predominantly inbreeding. Based on sequence data from 105 plants representing 11 wild populations covering the entire geographic range of these wild species, we detected significantly higher nucleotide variation in O. rufipogon than in O. nivara at both the population and species levels. At the population level the diversity in O. rufipogon (Hd = 0.712; theta (sil) = 0.0017) is 2-3 folds higher than that in O. nivara (Hd = 0.306; theta (sil) = 0.0005). AMOVA partitioning indicated that genetic differentiation among O. nivara populations (78.2%) was much higher than that among O. rufipogon populations (52.3%). The different level of genetic diversity and contrasting population genetic structure between O. rufipogon and O. nivara might be explained by their distinct life histories and mating systems. Our simulation using IM models demonstrated significant gene flow from O. nivara to O. rufipogon, indicating a directional introgression from the annual and selfing species into the perennial and outcrossing species. The ongoing introgression has played an important role in shaping current patterns of genetic diversity of these two wild species.
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