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

Simple item page
cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.affiliationUniversity of Eldoreten
cg.contributor.affiliationMaasai Mara Universityen
cg.contributor.affiliationUniversity of the Free Stateen
cg.contributor.affiliationNelson Mandela Africa Institution of Science and Technologyen
cg.contributor.affiliationInternational Livestock Research Instituteen
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1111/jfb.13150en
cg.isijournalISI Journalen
cg.issn1095-8649en
cg.issue6en
cg.journalJournal of Fish Biologyen
cg.reviewStatusPeer Reviewen
cg.subject.ilriFISHen
cg.subject.ilriGENETICSen
cg.volume89en
dc.contributor.authorBarasa, J.E.en
dc.contributor.authorAbila, R.en
dc.contributor.authorGrobler, J.P.en
dc.contributor.authorAgaba, Morrisen
dc.contributor.authorChemoiwa, E.J.en
dc.contributor.authorKaunda-Arara, B.en
dc.date.accessioned2017-08-02T09:35:32Zen
dc.date.available2017-08-02T09:35:32Zen
dc.identifier.urihttps://hdl.handle.net/10568/82991
dc.titleHigh genetic diversity and population differentiation in Clarias gariepinus of Yala Swamp: Evidence from mitochondrial DNA sequencesen
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
dcterms.accessRightsOpen Access
dcterms.audienceScientistsen
dcterms.available2016-09-29
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
dcterms.extentp. 2557-2570en
dcterms.issued2016-12
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherWileyen
dcterms.subjectgeneticsen
dcterms.subjectsustainable fisheryen
dcterms.subjectclarias gariepinusen
dcterms.typeJournal Article

Files

License bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ILRI articles in journals
ILRI BecA articles
ILRI BecA outputs