Interesting phenomena in hybridization of carp ( Cyprinus carpio) and rosy barb ( Barbus conchonius)

In our experiments we have used a laboratory model fish, the rosy barb ( Barbus conchonius), for hybridization with carp ( Cyprinus carpio). We have produced reciprocal hybrids of the two species of which only carp female with barb male progenies are viable. Adult hybrids were analysed for morpholog...

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Bibliographic Details
Published in:Aquaculture 1995, Vol.129 (1), p.211-214
Main Authors: Váradi, L., Hidas, A., Várkonyi, E., Horváth, L.
Format: Article
Language:English
Subjects:
Animals
Aquaculture
BARBUS
Barbus conchonius
Biological and medical sciences
Breeding of animals
CARIOTIPOS
CARYOTYPE
Classical genetics, quantitative genetics, hybrids
CYPRINUS
Cyprinus carpio
Fish
Fundamental and applied biological sciences. Psychology
Genetics of eukaryotes. Biological and molecular evolution
HIBRIDACION
HIBRIDOS
HYBRIDATION
HYBRIDE
HYBRIDIZATION
HYBRIDS
Karyotype
KARYOTYPES
Vertebrata
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Summary:In our experiments we have used a laboratory model fish, the rosy barb ( Barbus conchonius), for hybridization with carp ( Cyprinus carpio). We have produced reciprocal hybrids of the two species of which only carp female with barb male progenies are viable. Adult hybrids were analysed for morphological traits and biochemical markers. Analysis of chromosomes and erythrocytes demonstrated that crossing of farmed common carp with rosy barb resulted in hybrids having 75 intermediate chromosomes. On the other hand, crossing of koi carp with rosy barb produced triploid hybrids with 125 chromosomes. These differences were clearly manifested in the phenotype. Both hybrids proved to be sterile at the age of 1 year. A few new and surprising results were gained: linear scaliness inheritance in hybrids, a phenotypic difference depending on diploidy-triploidy, and the appearance of veil fins. These investigations may contribute to understanding the genetic structure of carp for application in both fish farming and genetic research.
ISSN:0044-8486
1873-5622
DOI:10.1016/0044-8486(94)00251-I