Hybridization between threatened freshwater catfish Mystus gulio (Hamilton & buchanan) and Mystus montanus (Jerdon) by artificial fertilization

Inter-specific hybrids were produced between the threatened catfish species Mystus gulio x Mystus montanus. The differences in percentage of fertilization and hatching between control and interspecies were significant. The survival of hybrid was significantly lower (24.80 +/- 4.3%) when compared to...

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Veröffentlicht in:	Indian journal of experimental biology 2009-08, Vol.47 (8), p.679-683
Hauptverfasser:	Haniffa, M A, Dhanaraj, M, Ramakrishnan, C Muthu, Manju, R Arthi, Kumar, Y Ananth, Singh, S V Arun
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Catfishes - embryology Catfishes - genetics Cell Proliferation Crosses, Genetic Embryo, Nonmammalian - abnormalities Embryo, Nonmammalian - cytology Embryo, Nonmammalian - embryology Female Fertilization in Vitro - methods Fresh Water Freshwater Hybridization, Genetic Male Mystus gulio Mystus montanus Time Factors Zygote - cytology Zygote - growth & development
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Zusammenfassung:	Inter-specific hybrids were produced between the threatened catfish species Mystus gulio x Mystus montanus. The differences in percentage of fertilization and hatching between control and interspecies were significant. The survival of hybrid was significantly lower (24.80 +/- 4.3%) when compared to control (95.1 +/- 3.5%). Time difference in yolk absorption by hybrid (73.30 h) was higher than that of control (72 h). When compared to interspecific fertilized egg the hatching time (24-25 h) and viability of larvae of the control were significantly better. In hybrids more deformed hatchlings (52.7 +/- 4.2 %) were noticed than the control (24.80 +/- 4.3%).
ISSN:	0019-5189