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Type: Artigo de periódico
Title: Labidura Riparia (dermaptera, Labiduridae) From Brazil: Karyotype And C-banding
Author: Avancini R.M.P.
Recco-Pimentel S.M.
Prado A.P.
Abstract: The karyotype of Labidura riparia from Brazil is 2n=5A+XY for males and 2n=5A+XX for females. The chromosomes can be grouped into 3 large and 3 small pairs, the latter including the sex chromosomes. The Y chromosome is entirely C-band positive and remains heteropycnotic during most of the division cycle. The X chromosome, which is longer than the Y chromosome, presents no C-banding. The longest chromosome of the complement has very noticeable C-bands at one of its terminal. Only one nucleolus was seen in the preparations examined. These results on the general chromosomal morphology are very similar to the karyotype described for L. riparia in the USA. The most significant similarity is that chromosome number 1 is about 20% longer than chromosome 2, a feature not observed in the karyotypes of L. riparia from other regions of the world. In addition, the difference in size between the chromosomes X and Y of Brazilian and US L. riparia is not as large as that for other populations.
Rights: aberto
Identifier DOI: 
Date Issue: 2000
Appears in Collections:Unicamp - Artigos e Outros Documentos

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