Genetic diversity in pigeonpea [Cajanus cajan (L.) Millsp.] Landraces as revealed by simple sequence repeat markers

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cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.affiliationJomo Kenyatta University of Agriculture and Technologyen
cg.contributor.affiliationInternational Crops Research Institute for the Semi-Arid Tropicsen
cg.contributor.affiliationInternational Institute of Tropical Agricultureen
cg.coverage.countryIndia
cg.coverage.countryKenya
cg.coverage.countryMalawi
cg.coverage.countryMozambique
cg.coverage.countryTanzania
cg.coverage.countryUganda
cg.coverage.iso3166-alpha2IN
cg.coverage.iso3166-alpha2KE
cg.coverage.iso3166-alpha2MW
cg.coverage.iso3166-alpha2MZ
cg.coverage.iso3166-alpha2TZ
cg.coverage.iso3166-alpha2UG
cg.coverage.regionAfrica
cg.coverage.regionAsia
cg.coverage.regionEastern Africa
cg.coverage.regionSouthern Africa
cg.coverage.regionSouthern Asia
cg.creator.identifierMorag Ferguson: 0000-0002-7763-5173
cg.howPublishedFormally Publisheden
cg.identifier.urlhttps://www.ajol.info/index.php/ajb/article/view/80648en
cg.isijournalISI Journalen
cg.issn1684-5315en
cg.journalAfrican Journal of Biotechnologyen
cg.reviewStatusPeer Reviewen
cg.subject.iitaGENETIC IMPROVEMENTen
cg.subject.iitaGRAIN LEGUMESen
cg.subject.iitaPLANT BREEDINGen
cg.subject.iitaPLANT GENETIC RESOURCESen
dc.contributor.authorSongok, S.en
dc.contributor.authorFerguson, M.en
dc.contributor.authorMuigai, Anne W.T.en
dc.contributor.authorSilim, S.en
dc.date.accessioned2018-06-04T13:19:36Zen
dc.date.available2018-06-04T13:19:36Zen
dc.identifier.urihttps://hdl.handle.net/10568/93019
dc.titleGenetic diversity in pigeonpea [Cajanus cajan (L.) Millsp.] Landraces as revealed by simple sequence repeat markersen
dcterms.abstractGenetic relationships among 88 pigeonpea accessions from a presumed centre of origin and diversity, India and a presumed secondary centre of diversity in East Africa were evaluated using six microsatellite markers. Forty-seven (47) alleles were detected in the populations studied, with a mean of eight alleles per locus. Populations were defined by region (India and East Africa) and sub-populations by country in the case of East Africa and State in the case of India. Substantial differentiation among regions was evident from Roger’s modified distance and Wright’s F statistic. Greatest genetic diversity in terms of number of alleles, number of rare alleles and Nei’s unbiased estimate of gene diversity (H) was found in India as opposed to East Africa. This supports the hypothesis that India is the centre of diversity and East Africa is a secondary centre of diversity. Within East Africa, germplasm from Tanzania had the highest diversity according to Nei’s unbiased estimate of gene diversity, followed by Kenya and Uganda. Germplasm from Kenya and Tanzania were more closely related than that of Uganda according to Roger’s modified distance. Within India, results did not indicate a clear centre of diversity. Values of genetic distance indicated that genetic relationships followed geographical proximity.en
dcterms.accessRightsOpen Access
dcterms.audienceScientistsen
dcterms.bibliographicCitationSongok, S., Ferguson, M., Muigai, A.W. & Silim, S. (2010). Genetic diversity in pigeonpea [Cajanus cajan (L.) Millsp.] landraces as revealed by simple sequence repeat markers. African Journal of Biotechnology, 9(22), 3231-3241.en
dcterms.descriptionOpen Access Journalen
dcterms.extent3231-3241en
dcterms.issued2010
dcterms.languageen
dcterms.subjectcajanus cajanen
dcterms.subjectgenetic variationen
dcterms.subjectsimple sequence repeaten
dcterms.subjectpigeonpeaen
dcterms.typeJournal Article

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