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Genetic variability and population structure of Djallonke sheep in Ngaoundere (Adamawa-Cameroon)

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Research Paper 01/06/2022
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Genetic variability and population structure of Djallonke sheep in Ngaoundere (Adamawa-Cameroon)

Bagari Iya Souley, Maliki Ibrahim Bello, Vondou Voundou Sébastien, Asta Madi, Abdoullahi Iya, Mbassi Linda Stella, Nnanga Mvondo Germaine Estelle,Tangwa Clothilda Layu, Bayang Houli Nicolas, Djaowe Antoine
Int. J. Biosci.20( 6), 26-31, June 2022.
Certificate: IJB 2022 [Generate Certificate]
Key: CameroonDjallonke sheepGenetic variabilityPopulation structure

Abstract

The aim of this study is to contribute to a better knowledge of the genetic diversity of the indigenous Djallonke sheep in Ngaoundere (Cameroon). A total of 126 adult sheep (38 males and 88 females) were selected during the period from January to December 2020. Body measurements were taken using a measuring tape, a graduated measuring stick and a graduated ruler. Principal component analysis of 18 quantitative traits of genetic variability showed that the cumulative variances of the first 15 traits provided 98.12% evidence of the genetic variability observed in the study population. The analysis of discriminating factors revealed two genetic types; finally, the phylogenetic tree revealed that genetic type I is close to genetic type II. The present study should be complemented by a molecular characterisation in order to set up strategies for the conservation of local genetic resources of Djallonke sheep in Ngaoundere in particular and the sudano-guinean zone of Cameroon in general, which is their cradle.

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