Genetic Characterization of Indigenous Rice Varieties in Eastern Himalayan Region of Northeast India-中国期刊网

摘要 TheeasternHimalayanregionofNortheast(NE)Indiaishometoalargenumberofindigenousricevarieties,whicharetraditionallyclassifiedasOryzasativasubspeciesindica,japonicaorintermediatetypes.TheclassificationbasedontraditionalCheng'sindexisofteninconclusiveduetophenotypicplasticityofmorphologicalcharacters,whichareinfluencedbyenvironmentalconditions.WeusedmolecularmarkersspecificforindicaandjaponicasubspeciestoassessthedegreeofgeneticrelatednessofindigenousricevarietiesinNEIndia.Theresultsrevealedthatmajorityofupland(jum)andglutinousricevarieties,traditionallyconsideredasjaponica,weregeneticallyclosetothesubspeciesindica.Allvarietiesofboroecotypewerefoundtobeindicatype,andonlyafewvarietiescultivatedinlowlandanduplandareaswerejaponicatype.Someofthelowlandvarietiesofthesaliecotypewereintermediatebetweenindicaandjaponica,andtheyshowedaclosergeneticaffinitytoO.rufipogon.

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Genetic Characterization of Indigenous Rice Varieties in Eastern Himalayan Region of Northeast India

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Genetic Characterization of Indigenous Rice Varieties in Eastern Himalayan Region of Northeast India

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