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Induced diploid gynogenesis and polyploidy in crucian carp, Carassius auratus gibelio (Bloch), x common carp, Cyprinus carpio L., hybrids.
Author(s) -
Cherfas N.B.,
Gomelsky B.I.,
Emelyanova O.V.,
Recoubratsky A.V.
Publication year - 1994
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/j.1365-2109.1994.tb01356.x
Subject(s) - biology , hybrid , ploidy , crucian carp , cyprinus , common carp , chromosome , carassius , genetics , zoology , carp , karyotype , fish <actinopterygii> , botany , fishery , gene
. Results of a 16 year (1977–1992) study of hybrids obtained from crossing two cyprinid fish, crucian carp, Carassius auratus gibelio (Bloch) (bisexual form), and common carp, Cyprinus carpio L., are presented. The ability to produce diploid eggs in F 1 females (resulting from chromosome endoreduplication in early oogenesis) was responsible for the high yield of spontaneous diploids in gynogenetic progenies of F 1 females and for triploidy in hybrids from back‐crosses of F 1 females with males of the parent species. Different types of hybrids, including diploid and triploid gynogenetic, tetraploid (amphidiploid) and androgenetic progenies, were obtained. Diploid and some triploid hybrids (females only) were reproduced inter se by induced gynogenesis in several subsequent gynogenetic generations. Amphidiploid hybrids were obtained by crossing triploid F 8 females with diploid common carp males or by crossing diploid gynogenetic females with diploid inverted hybrid males producing diploid sperm. Results of cytogenetic investigations and fish culture properties in hybrids are presented. The scientific and practical significance of the data obtained are discussed.