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- Statement by Ms. Elizabeth Maruma Mrema, Acting Executive Secretary, Convention on Biological Diversity, for the opening of the Second Meeting of the Working Group on the Post-2020 Global Biodiversity Framework, Monday, 24 February 2020, Rome
- Over 1000 delegates from more than 140 countries started negotiations today at FAO headquarters, Rome on the zero draft of a landmark post-2020 global biodiversity framework and targets for nature to 2030.
- Statement by Elizabeth Maruma Mrema, Acting Executive Secretary, Convention on Biological Diversity, on the occasion of World Wetlands Day
Morphometric and genetic characterization of sympatric population of Clarias gariepinus and C. aguillaris from Senegal
|Download||Agnèse et al 1997 Clarias gariepinus et C anguillaris.pdf (French, 285 KB)|
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|Upload date||05 Jan 2016|
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|1||French||Agnèse et al 1997 Clarias gariepinus et C anguillaris.pdf (current)||Célestin Mizani||05 Jan 2016||285 KB||application/pdf|
A sample of African Clarias catfishes from the Senegal River was studied using morphometry, allozyme variation, microsatellites and RFLPs of mitochondrial DNA. They all confirmed the
presence of two species, C. gariepinus and C. anguillaris. The two species were closely related genetically and no diagnostic loci were found in allozymes and microsatellites studies. Two of
the 11 haplotypes of mtDNA observed were shared by both species. Three of the four assays (morphometry, allozymes and microsatellites) allowed a precise characterization of both. One
specimen occupied an intermediate position in the analysis of the data; it was considered an F1 hybrid whose possible origin is discussed.