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Genetic diversity analysis of traditional and improved cultivars of Pakistani rice (Oryza sativa L.) using RAPD markers Electron. J. Biotechnol.
Rabbani,Malik Ashiq; Pervaiz,Zahida Hassan; Masood,Muhammad Shahid.
The molecular marker is a useful tool for assessing genetic variations and resolving cultivar identities. Information on genetic diversity and relationships among rice genotypes from Pakistan is currently very limited. The objective of this study was to evaluate the genetic polymorphisms and identities of 10 traditional, 28 improved and 2 Japanese cultivars of rice using the random amplified polymorphic DNA technique. Twenty-five decamer-primers could generate a total of 208 RAPD fragments, of which 186 or 89.4% were polymorphic. The number of amplification products produced by each primer varied from 4 to 16 with an average of 8.3 bands primer-1. The size of amplified fragments were ranged from 200 to 4000 bp. Pair-wise Nei and Li's similarity had...
Tipo: Journal article Palavras-chave: Cultivar discrimination; Genetic variability; Oryza sativa; Pakistani rice; RAPDs.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582008000300006
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Genetic diversity of high performance cultivars of upland and irrigated Brazilian rice. Repositório Alice
COELHO, G. R. C.; BRONDANI, C.; HOFFMANN, L. V.; VALDISSER, P. A. M. R.; BORBA, T. C. O.; MENDONÇA, J. A.; RODRIGUES, L. A.; MENEZES, I. P. P. de..
The objective of this study was to analyze the diversity and discrimination of high-performance Brazilian rice cultivars using microsatellite markers. Twenty-nine rice cultivars belonging to EMBRAPA Arroz e Feijão germplasm bank in Brazil were genotyped by 24 SSR markers to establish their structure and genetic discrimination. It was demonstrated that the analyzed germplasm of rice presents an expressive and significant genetic diversity with low heterogeneity among the cultivars. All 29 cultivars were differentiated genetically, and were organized into two groups related to their upland and irrigated cultivation systems. These groups showed a high genetic differentiation, with greater diversity within the group that includes the cultivars for irrigated...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Cultivar discrimination; Arroz; Oryza sativa; Variação genética; Recurso genético; Rice; Genetic variation; Genetic resources; Microsatellite repeats.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1078383
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