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2018 | 20 | 2 |

Tytuł artykułu

Sertoli cell efficiency of the Neotropical bats Anoura geoffroyi, Artibeus lituratus and Myotis levis (Mammalia: Chiroptera)

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Sertoli cells play an essential role in spermatogenesis, being determinant of male reproduction capability. In this study we determined and compared the Sertoli cell efficiency (SCE), i.e. the ratio of the number of round spermatids to the number of Sertoli cells, of three species of Neotropical chiropterans, Anoura geoffroyi, Artibeus lituratus and Myotis levis, and additionally we tested for correlations between SCE, the combined mass of the testes and epididymides (CMTE), and the body condition index (BCI), considering that both BCI and testis mass can influence gonadal function of males. For SCE determination, the number of round spermatids and Sertoli cells present in stage 1 of the cycle of the seminiferous epithelium were counted. The Sertoli cell efficiency (mean ± 1 SD) was 4 ± 2.4 for A. geoffroyi, 4 ± 1.0 for A. lituratus and 6 ± 2.0 for M. levis. No significant variation was observed in SCE among the species, but A. lituratus exhibited a statistically significant correlation between CMTE and BCI. Anoura geoffroyi and M. levis exhibited significant positive correlations between SCE and CMTE, but not between SCE and BCI. Previous studies have shown that, unlike A. lituratus, A. geoffroyi and M. levis are subject to strong mating pressures, leading us to hypothesize that these findings may be related to differential mating pressures between species.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

20

Numer

2

Opis fizyczny

p.493-501,fig.,ref.

Twórcy

autor
  • Programa de Pos-graduacao em Biologia de Vertebrados, Departamento de Ciencias Biologicas, Pontificia Universidade Catolica de Minas Gerais, Avenida Dom Jose Gaspar, 500, Belo Horizonte, Minas Gerais, Brazil
autor
  • Programa de Pos-graduacao em Biologia de Vertebrados, Departamento de Ciencias Biologicas, Pontificia Universidade Catolica de Minas Gerais, Avenida Dom Jose Gaspar, 500, Belo Horizonte, Minas Gerais, Brazil
  • Programa de Pos-graduacao em Biologia de Vertebrados, Departamento de Ciencias Biologicas, Pontificia Universidade Catolica de Minas Gerais, Avenida Dom Jose Gaspar, 500, Belo Horizonte, Minas Gerais, Brazil
autor
  • Programa de Pos-graduacao em Biologia de Vertebrados, Departamento de Ciencias Biologicas, Pontificia Universidade Catolica de Minas Gerais, Avenida Dom Jose Gaspar, 500, Belo Horizonte, Minas Gerais, Brazil

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Bibliografia

Identyfikator YADDA

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