BIOCHEMICAL AND CYTOLOGICAL DIFFERENTIATION AMONG CICHLID FISHES OF THE SEA OF GALILEE
BIOCHEMICAL AND CYTOLOGICAL DIFFERENTIATION AMONG CICHLID FISHES OF THE SEA OF GALILEE
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加利利海慈鲷的生物化学和细胞学分化
DOI：
10.1111/j.1558-5646.1979.tb04657.x
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发表时间：
1979
期刊：
影响因子：
3.3
通讯作者：
J. Wahrman
中科院分区：
文献类型：
--
作者：
I. Kornfield;U. Ritte;C. Richler;J. Wahrman
在脊椎动物中，慈鲷科的鱼类在进化上取得了成功。慈鲷科在生态上是多样的，并且在非洲和热带美洲的鱼类区系中占主导地位。一些具有广泛生态耐受性的物种分布广泛，而其他更专门的形式分布非常有限。特有种群的成员可能会表现出复杂的分类学关系，因为多个事件的生态收敛。在非洲的五大湖中，物种形成率高是物种群中某些属的特征（Greenwood，1974; Kornfield，1978）。虽然新的物种形成模式已被反复假设，以解释这种明显的多样性（见弗赖尔和莱斯，1972年;弗赖尔，1977年），遗传变化与分支没有被系统地研究。描述性细胞学研究表明，在旧大陆物种中，染色体数目和形态的变异有限（Jakowska，1950; jalabert et al.，1971; Natarajan and Subrahmanyam，1968; Post，1965; Thompson，1976）。同样的，小间-
Among vertebrates, fishes of the family Cichlidae stand out as an evolutionary success. Cichlids are diverse ecologically and dominate the ichthyofauna of Africa and tropical America. Some species with broad ecological tolerances are widely distributed, while other more specialized forms have very restricted distributions. Members of endemic species flocks may exhibit complex taxonomic relationships because of multiple episodes of ecological convergence. In the great lakes of Africa, high rates of speciation are characteristic of some genera within species flocks (Greenwood, 1974; Kornfield, 1978). Although novel modes of speciation have been repeatedly postulated to explain this apparent diversity (see Fryer and lIes, 1972; Fryer, 1977), the genetic changes associated with cladogenesis have not been studied in a systematic manner. Descriptive cytological studies have indicated that there is limited variation in chromosome number and morphology among Old World species (Jakowska, 1950; jalabert et aI., 1971; Natarajan and Subrahmanyam, 1968; Post, 1965; Thompson, 1976). Similarly, little inter-