Chromosomal Studies of the Hybrid between Female <i>Rhodeus ocellatus ocellatus</i>and Male <i>Rhodeus atremius fangi</i>in Bitterlings (Teleostei: Cypriniformes: Acheilognathinae)

• 作者: Takayoshi Ueda Yukie Ueda
• 来源期刊: 自然资源(英文)
• 学科: 医学
• 关键词: Bitterling HYBRID Chromosome Species Differentiation KARYOTYPE Evolu-tion Environmental Preservation
• 年，卷（期）: 2018,（1）
• 页码范围: 17-22
• 页数: 6页
• 分类号: R73

摘要

The chromosome analysis of the masculinized hybrid between female Rhodeus ocellatus ocellatus and male R. atremius fangi in bitterlings (Acheilognathinae) was done. It was presumed that they had intermediate karyotype between the parents, and formed sperms with heteroploidy resulting from the incomplete pairing of homologous chromosomes in meiosis. Due to the abundance of species and the ease of artificial fertilization, the study of the factor of the hybrid sterility in bitterlings would lead to the clarification of the mechanism about species differentiation and karyotype differentiation, and also develop a new variety. And also, it would also be important to make the hybrid various natures clear in environmental preservation.