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Hybridization of crucian carp, Carassius carassius (Linnaeus, 1758), in ukrainian reservoirs and genetic structure of hybrids

Mezhzherin S.V., Kokodiy S.V., Kulish A.V., Verlatiy D.B., Fedorenko L.V.

 




Hybridization of crucian carps arassius carassius in polyspecific crucian populations of reservoirs of Ukraine and genetic structure of the hybrids were investigated using biochemical gene marking and cytometric procedure. The fact of wide hybridization between C. auratus and . carassius was proved to be true by large number of hybrids which can form populations consisting only from hybrid individuals. Hybrids C. auratus × . carassius were diploid, tryploid and in exceptional cases tetraploid; females and males which most likely breed by hybridogenesis. Besides, some clonal hybrids C. carassius × C. gibelio-1 appearing as tetraploid females, and one triploid female C. carassius × Tinca tinca were revealed. It is supported that hybridization of alien C. auratus with endemic C. carassius became one of mechanisms of replacement and depressions of populations of the last.

Tsitologiya i Genetika 2012, vol. 46, no. 1, pp. 37-46

E-mail: mezh izan.kiev.ua

Mezhzherin S.V., Kokodiy S.V., Kulish A.V., Verlatiy D.B., Fedorenko L.V. Hybridization of crucian carp, Carassius carassius (Linnaeus, 1758), in ukrainian reservoirs and genetic structure of hybrids, Tsitol Genet., 2012, vol. 46, no. 1, pp. 37-46.




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