Differential rates of genic and chromosomal evolution in bats of the family Rhinolophidae.

  • Qumsiyeh M
  • Owen R
  • Chesser R
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Data for nondifferentially stained chromosomes from 10 species of Rhinolophus (Chiroptera: Rhinolophidae) suggest a conserved chromosomal evolution. G-banded chromosomes for three well differentiated species (Rhinolophus hipposideros, Rhinolophus blasii, and Rhinolophus acuminatus) corroborate a low level of gross chromosomal rearrangements. Additionally, a comparison between G-banded chromosomes of Rhinolophus (Rhinolophidae) and Hipposideros (Hipposideridae) suggests extreme conservatism in chromosomal arms between these two distantly related groups. On the other hand, we report extensive genic divergence as assayed by starch gel electrophoresis among these 10 species, and between Rhinolophus and two hipposiderid genera (Hipposideros and Aselliscus). The present chromosomal data are not sufficient for phylogenetic analysis. Phylogenies based on electrophoretic data are in many aspects discordant with those based on the classical morphological criteria. Different (and as yet not clearly understood) evolutionary forces affecting chromosomal, morphologic, and electrophoretic variation may be the reason for the apparent lack of concordance in these independent data sets.;

Author-supplied keywords

  • Alleles
  • Animals
  • Biological Evolution*
  • Chiroptera/*genetics
  • Chiroptera/classification
  • Chromosomes
  • Gene Frequency
  • Genes
  • Proteins/genetics

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  • M B Qumsiyeh

  • R D Owen

  • R K Chesser

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