Diploid Gynogenesis in Lampam Jawa Puntius gonionotus Using UV Irradiated Sperm of Puntius schwanenfeldii Followed by Temperature Schok.
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Induction of gynogenesis in muskellunge with irradiated sperm of yellow perch proves diploid muskellunge male homogamety.
Diploid gynogenesis was induced in muskellunge Esox masquinongy using UV-irradiated muskellunge sperm as the first step in producing monosex females. In this approach, we have to rely on negative controls as an indirect reference for sperm genetic material destruction. In the first experiment, equal proportions of gynogenetic females and males were produced. Negative controls, UV-irradiated spe...
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Experiments were carried out on the survival and growth of Rasbora daniconius, Puntius ticto and Puntius conchonius. The motivation of the study was to obtain information for growing the fish on a commercial scale for their use as biological control agents against mosquito larvae. The effects of temperature, total hardness, DO, pH and feed on the growth of fish were also investigated. Excessive...
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In the present reprobiological study on Puntius filamentosus the spawning months of November and April coincided with North-East Monsoon (November) and South-West Monsoon (April) in India. The gross morphology of P. filamentosus showed 6 ovarian stages. The histological appearance of the ovaries showed ten stages (oogonia to atretic oocytes). The testes of Puntius filamentosus showed five morph...
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Sporadic diploid gynogenetic fry resulted from fertilization with y-irradiated sperm. Their frequency increased appreciably when thermal shock treatments, beginning during the first hour of development (―0.4 OC lasting 6 hrs 45 min ; 26-30 °C lasting 10 min), were used. When the eggs were fertilized with normal sperm, a good triploidization rate was induced by means of heat shocks (27-30...
متن کاملDiploid gynogenesis in the Mexican axolotl.
Gynogenetic diploid axolotls were produced by activating eggs with ultraviolet-inactivated sperm, and then subjecting the activated eggs to heat shock. Optimal conditions for ultraviolet inactivation of the sperm, and for suppression of the second meiotic division by heat shock, were established. Gynogenetic diploids produced by these procedures included progeny homozygous for recessive alleles...
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 1993
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.59.957