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

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dc.creatorLokko, Y
dc.creatorDixon, Alfred G.O.
dc.creatorOffei, S.
dc.creatorDanquah, E.Y.
dc.creatorFregene, Martin A.
dc.date2006-11
dc.date2014-09-24T08:41:46Z
dc.date2014-09-24T08:41:46Z
dc.date.accessioned2026-06-27T14:47:20Z
dc.descriptionA study was conducted to determine the extent of genetic diversity among African cassava (<em>Manihot esculenta</em> 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.identifierhttps://hdl.handle.net/10568/43200
dc.identifier.urihttp://hdl.handle.net/123456789/88449
dc.languageen
dc.publisherSpringer
dc.rightsLimited Access
dc.sourceLokko, Y., Dixon, A., Offei, S. et al. Assessment of genetic diversity among African cassava Manihot esculenta Grantz accessions resistant to the cassava mosaic virus disease using SSR markers. Genet Resour Crop Evol 53, 1441–1453 (2006). https://doi.org/10.1007/s10722-005-6841-x
dc.subjectmanihot esculenta
dc.subjectgenetic variation
dc.subjectgenetic resistance
dc.subjectafrican cassava mosaic virus
dc.subjectvariación genética
dc.subjectresistencia genética
dc.subjectvirus del mosaico de la yuca
dc.subjectsources of resistance
dc.subjectsimple sequence repeat
dc.subjectcluster groups
dc.subjecteast african cassava mosaic virus
dc.titleAssessment of genetic diversity among African cassava Manihot esculenta Crantz accessions resistant to the cassava mosaic virus disease using SSR markers
dc.typeJournal Article

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