Population Genetic Structure and Demographic History of Opsaridium microcephulum along Lake Nyasa

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dc.creatorNehemia, Alex
dc.creatorMwakalesi, Alinanuswe J.
dc.date.accessioned2025-07-11T15:05:42Z
dc.date.accessioned2025-08-05T07:41:08Z
dc.date.available2025-07-11T15:05:42Z
dc.date.created2025-07-11T15:05:42Z
dc.date.issued2023
dc.description.abstractThe Sanjika, Opsaridium microcephalum is among the fish species that serve as a major source of proteins and income to people along Lake Nyasa. However, the information on its genetic diversity and structure particularly in the Tanzania part of the Lake is limited. Therefore, the assessment of the genetic diversity and structure of O.microcephalum along the Lake Nyasa part of Tanzania was conducted in the current study using a fragment of the mitochondrial COI gene from 92 individuals of O. microcephalum. The findings showed that an average haplotype diversity and average nucleotide diversity were 0.8065 ± 0.0314 and 0.002380 ± 0.001640, respectively. The molecular Variance (AMOVA) indicated significant genetic variations among the subpopulations studied (Overall Φst = 0.31560, p < 0.001). The lowest haplotype diversity was recorded at Manda and the highest haplotype diversity was recorded at Buloma. The lowest nucleotide diversity was recorded at Manda and the highest was recorded at Lupingu. The differences in genetic diversity can be a possible indicator of different localised evolutionary forces that require attention to conservationists for the sustainable management of O. microcephalum.
dc.identifier0856-1761, e-ISSN 2507-7961
dc.identifierhttps://dx.doi.org/10.4314/tjs.v49i5.8
dc.identifierhttps://www.suaire.sua.ac.tz/handle/123456789/6799
dc.identifier.urihttp://repository.costech.or.tz/handle/20.500.14732/99476
dc.languageen
dc.publisherUniversity of Dar es Salaam
dc.relationTanzania Journal of Science 49(5): 1028-1037, 2023
dc.subjectLake Nyasa
dc.subjectgenetic diversity
dc.subjectdemographic history
dc.subjectpopulation genetics
dc.titlePopulation Genetic Structure and Demographic History of Opsaridium microcephulum along Lake Nyasa
dc.typeArticle

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