High genetic diversity and population differentiation in Clarias gariepinus of Yala Swamp: Evidence from mitochondrial DNA sequences

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cg.authorship.typesCGIAR and developing country instituteen_US
cg.contributor.affiliationUniversity of Eldoreten_US
cg.contributor.affiliationMaasai Mara Universityen_US
cg.contributor.affiliationUniversity of the Free Stateen_US
cg.contributor.affiliationNelson Mandela Africa Institution of Science and Technologyen_US
cg.contributor.affiliationInternational Livestock Research Instituteen_US
cg.howPublishedFormally Publisheden_US
cg.identifier.doihttps://doi.org/10.1111/jfb.13150en_US
cg.isijournalISI Journalen_US
cg.issn1095-8649en_US
cg.issue6en_US
cg.journalJournal of Fish Biologyen_US
cg.reviewStatusPeer Reviewen_US
cg.subject.ilriFISHen_US
cg.subject.ilriGENETICSen_US
cg.volume89en_US
dc.contributor.authorBarasa, J.E.en_US
dc.contributor.authorAbila, R.en_US
dc.contributor.authorGrobler, J.P.en_US
dc.contributor.authorAgaba, Morrisen_US
dc.contributor.authorChemoiwa, E.J.en_US
dc.contributor.authorKaunda-Arara, B.en_US
dc.date.accessioned2017-08-02T09:35:32Zen_US
dc.date.available2017-08-02T09:35:32Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/82991en_US
dc.titleHigh genetic diversity and population differentiation in Clarias gariepinus of Yala Swamp: Evidence from mitochondrial DNA sequencesen_US
dcterms.abstractIn order to improve the conservation and sustainable utilization of the African catfish Clarias gariepinus of the Yala Swamp in Kenya, genetic diversity and population structure of Lakes Kanyaboli and Namboyo populations of the species were studied using DNA sequences of the mitochondrial D-loop control region. Genetic diversity inferred as haplotype and nucleotide diversities and number of singletons and shared haplotypes was higher in the Lake Kanyaboli population (LKG) than the Lake Namboyo population (LNG) of C. gariepinus. Thirty-one haplotypes were inferred, of which 25 (80·6%) were private or singletons, while only six (19·4%) haplotypes were shared between LKG and LNG. Both populations were differentiated, with FST value that was significantly different from zero (P < 0·05). Two clusters were inferred both from the maximum likelihood tree and the spanning networks of phylogenetic relationships of haplotypes. Mismatch distribution for total sample was multi-modal but individually, distributions were uni-modal in LKG, but multimodal in LNG. The mean ± s.d. raggedness index for both populations was 0·085 ± 0·098 and not significantly different from zero (P > 0·05). Individual raggedness indices were 0·015 and 0·154 for LKG and LNG respectively. Fu's Fs was negative for both populations, with LKG recording -14·871, while LNG had -2·565, significantly different from zero for LKG (P < 0·05), but the value for LNG was not significant (P > 0·05). Tajima's D was negative for both populations, with LKG recording -1·734, while LNG had -1·136. Standardized square differences (SSD) were 0·001 for LKG and 0·048 for LNG and non-significant between them (P > 0·05). Values between all populations were also not significantly different (P > 0·05), mean ± s.d. SSD 0·025 ± 0·033.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.audienceScientistsen_US
dcterms.available2016-09-29en_US
dcterms.bibliographicCitationBarasa, J.E., Abila, R., Grobler, J.P., Agaba, M., Chemoiwa, E.J. and Kaunda-Arara, B. 2016. High genetic diversity and population differentiation in Clarias gariepinus of Yala Swamp: Evidence from mitochondrial DNA sequences. Journal of Fish Biology 9 (6):2557–2570.en_US
dcterms.extentp. 2557-2570en_US
dcterms.issued2016-12en_US
dcterms.languageenen_US
dcterms.licenseCopyrighted; all rights reserveden_US
dcterms.publisherWileyen_US
dcterms.subjectgeneticsen_US
dcterms.subjectsustainable fisheryen_US
dcterms.subjectclarias gariepinusen_US
dcterms.typeJournal Articleen_US

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