Chromosomes of snails in Bulinus truncatus/tropicus Complex
Zekeria Habib
Broschiertes Buch

Chromosomes of snails in Bulinus truncatus/tropicus Complex

Study of Chromosome number in Snail Species of Bulinus truncatus/tropicus Complex from various Localities in Ethiopia

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Freshwater snails of the Bulinus truncatus/tropicus complex occur in Ethiopia at various ploidy levels (diploid, tetraploid, hexaploid and octoploid) which are otherwise rare in other animal phyla. The present study provides data on the occurrence and distribution of the various ploidy levels of B. truncatus/tropicus complex from 14 localities in Ethiopia based on meiotic bivalent chromosome counts. Emphasis was put on the use of shell morphology and chromosome number in species identification within B. truncatus/tropicus group. Chromosome preparation was made from gonadal tissue (ovotestis). ...