Journal ArticleDOI
Geographic pattern of variation among Asian native rice cultivars (Oryza sativa L.) based on fifteen isozyme loci
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TLDR
The geographic pattern of isozyme variation among rice varieties (Oryza sativa L.) in Asia is described based on an electrophoretic survey of 1688 accessions for 15 loci, which shows variation among indica and japonica rice shows the hilly part of continental Southeast Asia to be the region of choice.Abstract:
The geographic pattern of isozyme variation among rice varieties (Oryza sativa L.) in Asia is described based on an electrophoretic survey of 1688 accessions for 15 loci. The distribution patterns ...read more
Citations
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Journal ArticleDOI
Use of RAPD for the study of diversity within plant germplasm collections
TL;DR: Methods for the speedy extraction of DNA representative of a rice accession, its amplification by PCR to reveal reproducible products, and the analysis of the banding data using numerical techniques have been established.
Journal ArticleDOI
Genetic diversity analysis of traditional and improved Indonesian rice (Oryza sativa L.) germplasm using microsatellite markers.
Michael J. Thomson,Endang M. Septiningsih,Fatimah Suwardjo,Tri Joko Santoso,Tiur S. Silitonga,Susan R. McCouch +5 more
TL;DR: This germplasm presents a valuable source of diversity for future breeding and association mapping efforts and is characterized using fluorescently-labeled microsatellite markers to better understand this rich source of genetic diversity in Indonesia.
Journal ArticleDOI
Contrasting genetic diversity relationships are revealed in rice ( Oryza sativa L.) using different marker types
TL;DR: Investigations of the relationships revealed between rice groups using the two types of PCR-based marker led to investigations of their map positions using an intraspecific doubled haploid mapping population.
Journal ArticleDOI
Effectiveness of different classes of molecular marker for classifying and revealing variation in rice (Oryza sativa) germplasm
TL;DR: At the highest levels of genetic similarity there was only partial agreement as to relationships between individual accessions when different markers were used, and the advisability of extrapolating to other sets of germplasm particularly of other crop species is discussed.
Journal ArticleDOI
Assessment of genetic diversity within and among Basmati and non-Basmati rice varieties using AFLP, ISSR and SSR markers
TL;DR: The study emphasizes the need for using a combination of different marker systems for a comprehensive genetic analysis of Basmati rice germplasm, and the high-level polymorphism generated by SSR, ISSR and AFLP assays described in this study shall provide novel markers to differentiate between traditional BasMati rice supplies from cheaper cross-bred Bas mati and long-grain non-Basmati varieties at commercial level.
References
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Journal ArticleDOI
The origin, evolution, cultivation, dissemination, and diversification of Asian and African rices
TL;DR: Both the African and Asian rices are still undergoing evolutionary changes at habitats where the wild, weed, and cultivated races co-exist, largely due to cultivators' preferences, socio-religious traditions, and population pressure.
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Origin of the genic diversity of cultivated rice (Oryza spp.): study of the polymorphism scored at 40 isozyme loci
TL;DR: An electrophoretic survey of up to forty presumed isozyme loci in Asian and African cultivated rice confirmed that O. glaberrima was domesticated from O. breviligulata independently of O, sativa and suggest that, at the origin of O. sativa, the Indica and the Japonica types were also domesticated independently.
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Isozymes, plant population genetic structure and genetic conservation.
TL;DR: The role of population genetic data, particularly those derived from electrophoretic analysis of protein variation, is reviewed and the importance of documenting possible coadapted complexes and gene-environment relationships is discussed.
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Genetic variation and geographic cline of esterase isozymes in native rice varieties
TL;DR: This area was postulated to be the center of genetic diversity in esterase isozymes of O. sativa, proposing an important working hypothesis in advancing researches on its speciation and migration.