Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Morphological and histological characters of penile organization in eleven species of molossid bats

Full text
Author(s):
Comelis, Manuela T. [1] ; Bueno, Larissa M. [1] ; Goes, Rejane M. [2] ; Taboga, S. R. [2] ; Morielle-Versute, Eliana [1]
Total Authors: 5
Affiliation:
[1] Sao Paulo State Univ Unesp, Inst Biosci Humanities & Exact Sci Ibilce, Dept Zool & Bot, Campus Sao Jose do Rio Preto, BR-15054000 Sao Paulo - Brazil
[2] Sao Paulo State Univ UNESP, Inst Biosci Humanities & Exact Sci Ibilce, Dept Biol, Campus Sao Jose do Rio Preto, BR-15054000 Sao Paulo - Brazil
Total Affiliations: 2
Document type: Journal article
Source: ZOOLOGY; v. 127, p. 70-83, APR 2018.
Web of Science Citations: 1
Abstract

The penis is the reproductive organ that ensures efficient copulation and success of internal fertilization in all species of mammals, with special challenges for bats, where copulation can occur during flight. Comparative anatomical analyses of different species of bats can contribute to a better understanding of morphological diversity of this organ, concerning organization and function. In this study, we describe the external morphology and histomorphology of the penis and baculum in eleven species of molossid bats. The present study showed that penile organization in these species displayed the basic vascular mammalian pattern and had a similar pattern concerning the presence of the tissues constituting the penis, exhibiting three types of erectile tissue (the corpus cavernosum, accessory cavernous tissue, and corpus spongiosum) around the urethra. However, certain features varied among the species, demonstrating that most species are distinguishable by glans and baculum morphology and glans histological organization. Major variations in glans morphology were genus-specific, and the greatest similarities were shared by Eumops species and N. laticaudatus. The greatest interspecific similarities occurred between M. molossus and M. rufus and between Eumops species. Save for M. molossus and M. rufus, morphology of the baculum was species-specific; and in E. perotis, it did not occur in all specimens, indicating that it is probably under selection. In the histological organization, the most evident differences were number of septa and localization of the corpora cavernosa. In species with a baculum (Molossus, Eumops and Nyctinomops species), the corpora cavernosa predominantly occupied the dorsal region of the penile glans and is associated with the proximal (basal) portion of the baculum. In species that do not have a baculum (Cynomops, Molossops and Neoplatymops species), the corpora cavernosa predominantly occupied the ventro-lateral region of the glans. (AU)

FAPESP's process: 13/11859-2 - Morphological and histological analysis of the glans penis and of baculum of species of molossids and vespertilionids bats: taxonomic implications (Chiroptera, Mammalia)
Grantee:Eliana Morielle Versute
Support type: Regular Research Grants
FAPESP's process: 12/24288-0 - Histomorphology of glans penis and baculum of molossids and vespertilionids bats: a comparative approach (Chiroptera, Mammalia)
Grantee:Manuela Tosi Comelis Martins
Support type: Scholarships in Brazil - Master
FAPESP's process: 15/06923-9 - Structural and functional analysis of the penis and the prostate in neotropical bats
Grantee:Manuela Tosi Comelis Martins
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 09/16181-9 - Ultra-structural and immunocytochemical analysis of spermatogenesis and nucleologenesis of bats
Grantee:Eliana Morielle Versute
Support type: Regular Research Grants