INDUCTION OF GYNOGENETIC HAPLOIDY IN OYSTER CRASSOSTREA-GIGAS, USING ULTRAVIOLET-IRRADIATED SPERMS

Authors
GOSWAMI U
Citation
U. Goswami, INDUCTION OF GYNOGENETIC HAPLOIDY IN OYSTER CRASSOSTREA-GIGAS, USING ULTRAVIOLET-IRRADIATED SPERMS, Indian journal of marine sciences, 22(2), 1993, pp. 146-148
Citations number
NO
Categorie Soggetti
Oceanografhy
Journal title
Indian journal of marine sciences → ACNP
ISSN journal
03795136
Volume
22
Issue
2
Year of publication
1993
Pages
146 - 148
Database
ISI
SICI code
0379-5136(1993)22:2<146:IOGHIO>2.0.ZU;2-2
Abstract
Eggs of Crassostrea gigas were fertilized with sperms exposed to diffe rent doses of UV irradiations by keeping a constant rate of 121.47 erg s. mm-2 sec-1 and changing the period of exposure from 4 to 90 sec. Sa mples of larvae were analysed for chromosomal ploidy, rate of fertiliz ation, developmental and chromosomal abnromalities. The gynogenetic ha ploid larvae first made their appearance in the 30 and 50 sec group ex posed to 3644 and 6074 ergs mm-2 UV. The maximum number was found in t he 90 sec group exposed to 10932 ergs mm-2 UV.