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Assessment of genetic diversity among African cassava Manihot esculenta Grantz accessions resistant to the cassava mosaic virus disease using SSR markers

dc.contributor.authorLokko, Y.
dc.contributor.authorDixon, A.
dc.contributor.authorOffei, S.
dc.contributor.authorDanquah, E.Y.
dc.contributor.authorFregene, M.
dc.date.accessioned2019-12-04T11:18:06Z
dc.date.available2019-12-04T11:18:06Z
dc.date.issued2006
dc.identifier.citationLokko, Y., Dixon, A., Offei, S., Danquah, E. & Fregene, M. (2006). Assessment of genetic diversity among African cassava Manihot esculenta Grantz accessions resistant to the cassava mosaic virus disease using SSR markers. Genetic Resources and Crop Evolution, 53(7), 1441-1453.
dc.identifier.urihttps://hdl.handle.net/20.500.12478/3044
dc.description.abstractA study was conducted to determine the extent of genetic diversity among African cassava (Manihot esculenta Crantz) accessions resistant to the cassava mosaic virus disease (CMD), using simple sequence repeat (SSR) markers. The accessions included a breeding stock (clone 58308), five improved lines, 62 CMD resistant and 10 CMD susceptible landraces. Genetic diversity was assessed among accessions in five cluster groups derived from UPGMA analysis on data from 18 SSR primer pairs. Average gene diversity, He, was high in all cluster groups, with an average heterozygosity of 0.591 ± 0.061. The estimator of inbreeding Fis revealed a low level of inbreeding within groups and averaged −0.262 ± 0.142. Gene diversity among all accessions was 51.4% and gene diversity within cluster groups was 46.6%, while 4.8% was due to diversity between the different cluster groups. The amount of genetic differentiation measured by Gst and Fst were 9.6% and 12.1% respectively, indicating a weak genetic structure.
dc.description.sponsorshipRockefeller Foundation
dc.language.isoen
dc.subjectAfrican Cassava Mosaic Virus
dc.subjectGenetic Variation
dc.subjectManihot Esculenta
dc.subjectSources Of Resistance
dc.subjectSimple Sequence Repeat
dc.subjectCluster Groups
dc.subjectAfrican Cassava Mosaic Virus
dc.subjectEast African Cassava Mosaic Virus
dc.titleAssessment of genetic diversity among African cassava Manihot esculenta Grantz accessions resistant to the cassava mosaic virus disease using SSR markers
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversity of Ghana
cg.contributor.affiliationInternational Center for Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionAcp
cg.coverage.regionWest Africa
cg.coverage.regionSouth America
cg.coverage.countryNigeria
cg.coverage.countryGhana
cg.coverage.countryColombia
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectDisease Control
cg.iitasubjectFarm Management
cg.iitasubjectPests Of Plants
cg.iitasubjectPlant Breeding
cg.iitasubjectLivelihoods
cg.iitasubjectCassava
cg.iitasubjectGenetic Improvement
cg.iitasubjectFarming Systems
cg.iitasubjectHandling, Transport, Storage And Protection Of Agricultural Products
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.accessibilitystatusLimited Access
local.dspaceid94510
cg.identifier.doihttp://dx.doi.org/10.1007/s10722-005-6841-x


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