Chromosome studies of Brazilian vespertilionids Lasiurus cinereus and Lasiurus ega (Mammalia, Chiroptera)

Abstract

ABSTRACT. Cytogenetical studies based on conventional coloration by Giemsa, C-banding and Ag-NOR were performed on 2 species of bats from the vespertilionid family: Lasiurus cinereus (Beauvois, 1796) and Lasiurus ega (Gervais, 1856). The 2n was 28 and FN was 48 in both species. The constitutive heterochromatin is located in centromeric regions in the two species and in the short arm of the subtelocentric X chromosome in L. ega. NORs were observed in the secondary constriction of the smaller autosome in both species.

Lasiurus villosissimus (Chiroptera: Vespertilionidae)

“…The diploid number (2n) of Lasiurus villosissimus is 28 chromosomes. The autosomes comprise 10 pairs of metacentric and submetacentric chromosomes ranging in size from large to medium (pairs 1–10), one pair of small subtelocentric chromosomes (pair 12), and two pairs of small acrocentric chromosome (11 and 13); the X chromosome is a medium submetacentric (Marchesin and Versute 2004).…”