Misgurnus fossilis, a tetraploid fish species

New developments in vertebrate cytotaxonomy III. Karyology of bony fishes: A review

“…100 Ueno et al 1976Hitotsumachi et al 1969Takahasi et al 1976Cataudella et al 1977bTakahasi et al 1976Ueno et al 1976Ueno et al 1976Ueno et al 1976Takahasi et al 1976Ueno et al 1976Ueno et al 1976Nogusa 1960Hitotsumachi et al 1969Sawada 1976Makino 1941aHitotsumachi et al 1969Post 1965Raicu et al 1972aManna et al 1978Srivastava et al 1969Nayyar 1966Q Rishi 1973Srivastava et al 1969Ueno 1974Ueno 1974Das et al 1977Nayyar 1966 Rishi 1976a Nayyar Muramoto 1969Arai et al 1974bArai et al 1974bArai et al 1974bNayyar 1966Nayyar 1966Manna et al 1978 Nygren et al 1974Vasil'ev 1978Nygren et al 1974Nygren et al 1974Nygren et al 1974Nygren et al 1974Nygren et al 1974 Scheel 1968aScheel 1972bScheel 1968a…”

A chromosome study of five species of Korean cobitid fish.

“…In addition, the existence of the two types of chromosomes is obvious in M. fossilis from the comparative view points of two reports by Post (1965) and Raicu and Taisescu (1972), and also in M. anguillicaudatus from reports by Hitotsumachi et al (1969), Ojima and Takai (1979) and Zhou (1984). Karyotypes of 5 Korean loaches used in this study showed no occurrence of polyploidy.…”

“…Of these, one group (2n=46-50) can be classified as diploid type and the other (2n=86-100) tetraploid type (exists as species or a type of intraspecific polymorphism), except for Botia macracantha (2n = 98. but no doubling of DNA contents; Muramoto et a1.1968). These considerations were made based on the DNA contents Takai 1979), isozyme patterns (Ferris and Whitt 1977), NF (Raicu and Taisescu 1972, Ueno et al 1980, Zhou 1984) and erythrocyte size (Sezaki and Kobayashi 1978). Most fishes of diploid type possess 50 chromosomes, although some have 46 or 48 chromosomes.…”

“…Chromosomal investigations of cobitid fish have been made on 17 species which were equivalent to about 14% of whole loathes (Post 1965, Muramoto et al 1968, Raicu and Taisescu 1972, Kobayashi 1976, Ueno and Ojima 1976, Sawada 1976, Ferris and whitt 1977, Ojima and Takai 1979, Ueno et al 1980, Suzuki and Taki 1982, kimizuka et al 1982, Kimizuka and Kobayashi 1983, Zhou 1984. Although karyological inf ormations on this family are little as described above, several phenomena, such as polyploidy and chromosomal polymorphism, have been found out which seemed important from the taxonomical and speciational view points.…”

Chromosome Complement of the Masked LoachSabanejewia Larv Ata(De Fil.) (Pisces, Osteichthyes)

“…Thus, while in Misgurnus anguillicaudatus (Cantor) exhibiting 2n = 50 (HITo-TSUMACHI et al 1969) in Misgurnus fossilis (L.) the chromosome complement is exactly its double, i.e. 2rt = 100 (RAICU and TAISESCU 1972). The same phenomenon was also found within a single species: in Cobitis biwae, for instance, some populations have a somatic complement of 48 chromosomes UENO and 0JIMA 1976), whereas other populations have 96 chromosomes (HITOTSUMACHI et al 1969;UENO and 0JIMA 1976 -, -,…”