ArticleScientific reports2018
Morphological and molecular dissection of wild rices from eastern India suggests distinct speciation between O. rufipogon and O. nivara populations.
Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Phenological and morphological variations of Oryza rufipogon and O. nivara in Sri Lanka and their evolutionary implications.Scientific reports · 2024Article
- Assessing Soil Quality, Wheat Crop Yield, and Water Productivity under Condition of Deficit Irrigation.Plants (Basel, Switzerland) · 2024Article
- Dual-transgenic BiFC vector systems for protein-protein interaction analysis in plants.Frontiers in genetics · 2024Article
- Population structure and genetic differentiation analyses reveal high level of diversity and allelic richness in crop wild relatives of AA genome species of rice (Oryza sativa L.) in India.Journal of applied genetics · 2023Article
- Mode of gene action and heterosis for physiological, biochemical, and agronomic traits in some diverse rice genotypes under normal and drought conditions.Frontiers in plant science · 2023Article
- Phenotypic Variation and the Impact of Admixture in theFrontiers in plant science · 2022Article
- Developing Novel Rice Genotypes Harboring Specific QTL Alleles Associated with High Grain Yield under Water Shortage Stress.Plants (Basel, Switzerland) · 2021Article
- Genetic variability of panicle architecture in indigenous rice landraces of Koraput region of Eastern Ghats of India for crop improvement.Physiology and molecular biology of plants : an international journal of functional plant biology · 2020Article
- Population genetics and evolutionary history of the wild rice speciesEcology and evolution · 2018Article
- Physiological characterization and allelic diversity of selected drought tolerant traditional rice (Physiology and molecular biology of plants : an international journal of functional plant biology · 2018Article
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Abstract
The inter relationships between the two progenitors is interesting as both wild relatives are known to be the great untapped gene reservoirs. The debate continues on granting a separate species status to Oryza nivara. The present study was conducted on populations of Oryza rufipogon and Oryza nivara from Eastern India employing morphological and molecular characteristics. The cluster analysis of the data on morphological traits could clearly classify the two wild forms into two separate discrete groups without any overlaps i.e. lack of intermediate forms, suggesting the non-sympatric existence of the wild forms. Amplification of hyper variable regions of the genome could reveal 144 alleles suggesting high genetic diversity values (average He = 0.566). Moreover, with 42.37% of uncommon alleles between the two wild relatives, the molecular variance analysis (AMOVA) could detect only 21% of total variation (p < 0.001) among them and rest 59% was within them. The population structure analysis clearly classified these two wild populations into two distinct sub-populations (K = 2) without any overlaps i.e. lack of intermediate forms, suggesting the non-sympatric existence of the wild forms. Clear differentiation into two distinct groups indicates that O. rufipogon and O. nivara could be treated as two different species.
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