English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Background  The genus  Micronycteris  is a diverse group of phyllostomid bats currently comprising 11 species, with diploid number (2n) ranging from 26 to 40 chromosomes. The karyotypic relationships within  Micronycteris  and between  Micronycteris  and other phyllostomids remain poorly understood. The karyotype of  Micronycteris hirsuta  is of particular interest: three different diploid numbers were reported for this species in South and Central Americas with 2n = 26, 28 and 30 chromosomes. Although current evidence suggests some geographic differentiation among populations of  M. hirsuta  based on chromosomal, morphological, and nuclear and mitochondrial DNA markers, the recognition of new species or subspecies has been avoided due to the need for additional data, mainly chromosomal data.    Results  We describe two new cytotypes for  Micronycteris hirsuta  (MHI) (2n = 26 and 25, NF = 32), whose differences in diploid number are interpreted as the products of Robertsonian rearrangements. C-banding revealed a small amount of constitutive heterochromatin at the centromere and the NOR was located in the interstitial portion of the short arm of a second pair, confirmed by FISH. Telomeric probes hybridized to the centromeric regions and weakly to telomeric regions of most chromosomes. The G-banding analysis and chromosome painting with whole chromosome probes from  Carollia brevicauda  (CBR) and  Phyllostomus hastatus  (PHA) enabled the establishment of genome-wide homologies between MHI, CBR and PHA.    Conclusions  The karyotypes of Brazilian specimens of  Micronycteris hirsuta  described here are new to  Micronycteris  and reinforce that  M. hirsuta  does not represent a monotypic taxon. Our results corroborate the hypothesis of karyotypic megaevolution within  Micronycteris , and strong evidence for this is that the entire chromosome complement of  M. hirsuta  was shown to be derivative with respect to species compared in this study.

Two new cytotypes reinforce that Micronycteris hirsuta Peters, 1869 does not represent a monotypic taxon