Hiromu Kobayasi

Hybridization experiment betweenGnathopogon elongatus elongatus ♀ andCarassius carassius ♂

Hybrids from an intersubfamilial cross betweenGnathopogon elongatus elongatus ♀ andCarassius carassius ♂ were analyzed morphologically and karyologically and compared with the parental species. These hybrids possessed a mosaic of character expressions that showed overall intermediacy though surperficial appearances were similar toG. elongatus elongatus. Their karyotype was constituted of one genome of theCarassius parent and two genomes of theGnathopogon parent.

Hybridization experiment betweenCarassius carassius ⧫ andGnathopogon elongatus elongatus ♂

Hybrids from an intergeneric cross betweenCarassius carassius ⧫ ×Gnathopogon elongatus elongatus ♂ were analyzed morphologically and karyologically and compared with the parental species. These hybrids possessed a mosaic of character expressions, but could be generally classified in two types similar to either C.carassius orG. elongatus elongatus. The karyotype was composed of two genomes of theCarassius parent and one of theGnathopogon parent for theCarassius- type hybrids, and one genome of theCarassius parent and two genomes of theGnathopogon parent for theGnathopogon- type hybrids.