Genetic Diversity and Population Differentiation of Farmed Nile Tilapia (Oreochromis niloticus Linnaeus, 1758) to Advance Selective Breeding in Uganda DOI Creative Commons
Gerald Kwikiriza, Ivan Abaho, Papius Dias Tibihika

et al.

Diversity, Journal Year: 2025, Volume and Issue: 17(2), P. 128 - 128

Published: Feb. 13, 2025

Despite the importance of Nile tilapia as a main aquaculture species in Uganda, limited research has been conducted concerning its genetic diversity, particularly farmed populations. This gap hindered development systematic breeding program for this species. Successful development, especially improvement, relies on diversity and purity wild populations germplasm sources selective breeding. Using microsatellite markers, current study evaluated 480 samples collected from 20 (Oreochromis niloticus) Uganda. All exhibited higher expected heterozygosity (0.50 ± 0.01) than observed (0.42 0.01), although was not significantly different. Populations ponds showed lower FST values (<0.001), an indication differentiation. The formed four clusters; first comprising mainly cages (Pal Busana), second with cages: Katosi SON addition to Rocks hatchery, third comprised Bawe cage fish farm Tendo fourth were beaches Lake Victoria. Given differentiation populations, these farms would provide potential candidates local strains These results more insights into management towards reduction inbreeding levels.

Language: Английский

Genetic Diversity and Population Differentiation of Farmed Nile Tilapia (Oreochromis niloticus Linnaeus, 1758) to Advance Selective Breeding in Uganda DOI Creative Commons
Gerald Kwikiriza, Ivan Abaho, Papius Dias Tibihika

et al.

Diversity, Journal Year: 2025, Volume and Issue: 17(2), P. 128 - 128

Published: Feb. 13, 2025

Despite the importance of Nile tilapia as a main aquaculture species in Uganda, limited research has been conducted concerning its genetic diversity, particularly farmed populations. This gap hindered development systematic breeding program for this species. Successful development, especially improvement, relies on diversity and purity wild populations germplasm sources selective breeding. Using microsatellite markers, current study evaluated 480 samples collected from 20 (Oreochromis niloticus) Uganda. All exhibited higher expected heterozygosity (0.50 ± 0.01) than observed (0.42 0.01), although was not significantly different. Populations ponds showed lower FST values (<0.001), an indication differentiation. The formed four clusters; first comprising mainly cages (Pal Busana), second with cages: Katosi SON addition to Rocks hatchery, third comprised Bawe cage fish farm Tendo fourth were beaches Lake Victoria. Given differentiation populations, these farms would provide potential candidates local strains These results more insights into management towards reduction inbreeding levels.

Language: Английский

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