Karyotype Diversity of Different Geographical Population of Rana limmocharis boie,Rana j. Japonica and Microhyla ornata
泽蛙、日本林蛙、饰纹姬蛙不同地理居群的核型多样性 Karyotype Diversity of Different Geographical Population of Rana limmocharis boie，Rana j. Japonica and Microhyla ornata

The karyotypes of Rana limmocharis boie,Rana j.Japonica,and Microhyla ornata from Wenzhou were studied.The karyotypes of nine populations of Rana limmocharis boie,four populations of Rana j Japonica and three populations of Microhyla ornata from different geographical regions were compared The results demonstrated that the same species of different geographical populations have the same amount of chromosome and karyotypic formulae Rana limmocharis boie and Rana j Japonica have 2n=26,NF=52 and 5 8 karyotypic formulae Microhyla ornata has 2n=24,NF=48 and 6 6 karyotypic formulae But some dissimilarities were found among them First,the number and sequence of submetacentric chromosome were different among them,and then the secondary contriction (SC)or satellite (Sat)were also different It was showed that the chromosomes of same species of different geographical population have diversities Conservation of frog genetic diversity must be considered of not only the genetic diversity conservation of the total frog population but also that of every frog breed