DEPARTMENT OF ANIMAL SCIENCE

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Author: search.filters.author.Salako, A.E.Subject: search.filters.subject.Genetic variation

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    Analysis Of Genetic Structure Of West African Dwarf Goats By Allozyme Markers
    (2016) Awobajo, O.K.; Salako, A.E.; Akinyemi, M.O.; Osaiyuwu, O.H.
    Genetic variation at three allozyme (Haemoglobin, Carbonic Anhydrase and Transferrin) loci and popula-tion structure hypothesis were examined for West African Dwarf goat populations in four Southwesternstate of Nigeria. One hundred and forty animals, twenty from each sampling area comprising Ijebu-Ode and Ado-Odo, (Ogun state), Ondo, (Ondo state), Ile–Ife, Osogbo and Iwo, (Osun state), and Ibadan,(Oyo state), were randomly selected. Estimates of genetic variability such as effective number of allelesand gene diversities revealed substantial genetic variation frequently displayed by allozyme markers. Numbers of alleles observed across the allozyme loci varied from 246 to 250 with an overall meanof 247.33 ± 2.31. Average polymorphism across the studied loci and expected gene diversity in thepopulation were 0.63 ± 0.09 and 0.44 ± 0.09, respectively. Population was observed to be significantlydifferentiated into different groups, and showed fairly high level of outbreeding (f = −0.16 ± 0.44) andexcess heterozygosity
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    Analysis Of Genetic Structure Of Nigerian West African Dwarf Goats By Microsatellite Markers markers
    (2015) Awobajo, O.K.; Salako, A.E.; Osaiyuwu, O.H.
    Genetic variation at 12 microsatellite loci and population structure hypothesis was examined for West African Dwarf (WAD) goat populations found in four Southwestern states in Nigeria. Estimates of genetic variability such as effective number of alleles and gene diversities revealed substantial genetic variation frequently displayed by microsatellite markers. Number of alleles observed across the microsatellite loci varied from 6 to 17 with an overall mean of 10.75 ± 3.22. Average polymorphism across the studied loci and expected gene diversity in the population were 1.66 ± 0.49 and 0.72 ± 0.17, respectively. Population was observed to be significantly differentiated into different groups, and showed fairly high level of inbreeding (f = 0.95 ± 0.15) and global heterozygote deficit.