title: Molecular characterization of Ethiopian indigenous goat populations.
abstract: Six Ethiopian indigenous goat populations viz. Gumuz, Agew, Begia-Medir, Bati, Abergelle, and Central Abergelle were genotyped for 15 microsatellite markers recommended by Food and Agriculture Organization of the United Nations and International Society for Animal Genetics. A total of 158 individual goats were tested to assess genetic variations within and between the goat populations in the Amhara Region of Ethiopia. The markers revealed 100% polymorphism across six goat populations indicating the presence of genetic diversity, which is an important variable to measure genetic variability within and between populations. The mean observed and expected heterozygosity values ranged from 0.56 (Central Abergelle) to 0.68 (Bati) and 0.59 (Abergelle) to 0.69 (Agew goat), respectively. The lowest genetic distance was observed between Begia-Medir and Central Abergelle (0.039), and the largest distances between Agew and Abergelle (0.140) and Gumuz and Abergelle (0.169). Neighbor-joining and the unweighted pair group method with arithmetic mean methods with bootstrap value of 1,000 was used which grouped the six goat populations into two major groups viz. the Abergelle goat cluster as one group and the Agew, Gumuz, Bati, Begia-Medir, and Central Abergelle goats as the second group. In our study, the obtained higher total variation within the goat populations (95%) confirms a close relatedness of the studied goat ecotypes, which might have happened due to the existence of uncontrolled animal breeding strategies resulting from uncontrolled movement of animals through various market routes and agricultural extension systems. The study contributed to the genetic characterization of Ethiopian indigenous goat populations and demonstrated the usefulness of the 15 microsatellite makers for biodiversity studies in goats.
authors.affiliation: International Center for Agricultural Research in the Dry Areas, PO Box 5466, Aleppo, Syria. halimamog2002@yahoo.com
authors.forename: Halima
authors.initials: H
authors.lastname: Hassen
authors.forename: Samer
authors.initials: S
authors.lastname: Lababidi
authors.forename: Barbara
authors.initials: B
authors.lastname: Rischkowsky
authors.forename: Michael
authors.initials: M
authors.lastname: Baum
authors.forename: Markos
authors.initials: M
authors.lastname: Tibbo
mesh_terms: D000818:Animals; D000835:Animals, Wild / Q000235:genetics*; D016000:Cluster Analysis; D017931:DNA Primers / Q000235:genetics; D005002:Ethiopia; D014644:Genetic Variation; D005838:Genotype; D006041:Goats / Q000235:genetics*; D006579:Heterozygote; D018895:Microsatellite Repeats / Q000235:genetics; D010802:Phylogeny; D013045:Species Specificity
chemical_list: D017931:DNA Primers