Morielle-Versute E, Varella-Garcia M, Taddei V A
Department of Zoology, São Paulo State University, São José do Rio Preto, Brazil.
Cytogenet Cell Genet. 1996;72(1):26-33. doi: 10.1159/000134154.
G- and C-banding patterns of seven species of the bat family Molossidae, Eumops glaucinus, E. perotis, Molossops abrasus, M. temminckii, Molossus ater, M. molossus, and Nyctinomops laticaudatus, were identified. Comparisons among the karyotypes of these species showed extensive homologies between E. perotis, M. ater, M. molossus, M. abrasus, and N. laticaudatus, demonstrating inter- and intrageneric conservatism, and a lesser degree of homologies in M. temminckii and E. glaucinus, reflecting intrageneric variation. Chromosomal variation was due to inversions, Robertsonian rearrangements, translocations, and variations in the location of constitutive heterochromatin and nucleolus organizer regions. The chromosome corresponding to No. 5 in the M. ater karyotype is discussed. We suggest that the Nyctinomops and Molossops karyotypes represent the primitive condition and that Molossus and Eumops have derived karyotypes.
确定了犬吻蝠科七种蝙蝠的G带和C带模式，分别是灰犬吻蝠、大耳犬吻蝠、粗毛犬吻蝠、坦氏犬吻蝠、黑犬吻蝠、犬吻蝠以及宽尾犬吻蝠。对这些物种核型的比较显示，大耳犬吻蝠、黑犬吻蝠、犬吻蝠、粗毛犬吻蝠和宽尾犬吻蝠之间存在广泛的同源性，表明属间和属内的保守性，而坦氏犬吻蝠和灰犬吻蝠的同源性程度较低，反映了属内变异。染色体变异是由倒位、罗伯逊重排、易位以及组成型异染色质和核仁组织区位置的变化引起的。讨论了黑犬吻蝠核型中与5号染色体相对应的染色体。我们认为宽尾犬吻蝠和犬吻蝠的核型代表原始状态，而犬吻蝠属和犬吻蝠的核型是衍生而来的。
