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Isolation of novel microsatellites using FIASCO by dual probe enrichment from Jatropha curcas L. and study on genetic equilibrium and diversity of Indian population revealed by isolated microsatellites.
Sudheer, Pamidimarri D V N; Rahman, Hifzur; Mastan, Shaik G; Reddy, Muppala P.
Afiliación
  • Sudheer PD; Discipline of Wasteland Research, Central Salt and Marine Chemicals Research Institute (CSIR), Bhavnagar, Gujarat, 364002, India. sudheer.vsc@gmail.com
Mol Biol Rep ; 37(8): 3785-93, 2010 Dec.
Article en En | MEDLINE | ID: mdl-20221701
Jatropha curcas L. belongs to family Euphorbiaceae, native to South America attained significant importance for its seed oil which can be converted to biodiesel, a renewable energy source alternative to conventional petrodiesel. Very few attempts were made to isolate novel microsatellite markers and assessment of the extent of genetic equilibrium and diversity that exists in J. curcas. Therefore, the present investigation was undertaken to isolate the novel microsatellites and access genetic equilibrium, diversity that exists among 44 diverse germplasm collected from distinct geographical areas in India using isolated microsatellites. The overall efficiency of the enrichment of microsatellite by dual probe in the present study found to be 54% and among the sequences obtained the percentage of sequences having suitable flanking regions for the primer designing was found to be 89.58%. The mean co-efficient of genetic similarity (CGS) was found to be 0.97. The overall diversity obtained by microsatellites was found to be low in comparison with the diversity reported by multilocus markers systems observed in earlier studies; however, the good allele polymorphism was observed. The overall dendrogram of microsatellite analysis resulted in random clustering of germplasm and not in accordance to geographical area of collection. The present study, diversity analysis using microsatellite markers concludes the low genetic diversity and genetic disequlibrium of J. curcas in India and will provide pavement for further intra-population studies on narrow geographical areas to understand the population genetic structure, phylogeography and molecular ecological studies. The germplasm characterized, and the microsatellite markers isolated and characterized in the present study can be employed efficiently in breeding programs for genetic improvement of the species through marker assisted selection and QTL analysis, for further genetic resource management and help in making the J. curcas as potential crop with superior agronomical traits.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Variación Genética / Secuencias Repetitivas de Ácidos Nucleicos / Repeticiones de Microsatélite / Jatropha / Análisis del Polimorfismo de Longitud de Fragmentos Amplificados / Frecuencia de los Genes / Genética de Población País/Región como asunto: Asia Idioma: En Revista: Mol Biol Rep Año: 2010 Tipo del documento: Article País de afiliación: India Pais de publicación: Países Bajos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Variación Genética / Secuencias Repetitivas de Ácidos Nucleicos / Repeticiones de Microsatélite / Jatropha / Análisis del Polimorfismo de Longitud de Fragmentos Amplificados / Frecuencia de los Genes / Genética de Población País/Región como asunto: Asia Idioma: En Revista: Mol Biol Rep Año: 2010 Tipo del documento: Article País de afiliación: India Pais de publicación: Países Bajos