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

Spermatozoan ultrastructure and mitochondrial gene sequence of Caryocorbula caribaea (d'Orbigny, 1853) (Corbulidae: Bivalvia), a species with plasticity in shell morphology

Full text
Author(s):
Tallarico, Lenita de Freitas [1] ; Introini, Gisele Orlandi [1, 2] ; Bonini, Amanda [1] ; Passos, Flavio Dias [3] ; Machado, Fabrizio Marcondes [4] ; de Arruda, Eliane Pintor [5] ; Recco-Pimentel, Shirlei Maria [1]
Total Authors: 7
Affiliation:
[1] Univ Estadual Campinas, Inst Biol, Dept Biol Estrutural & Func, Sao Paulo - Brazil
[2] Fundacao Univ Fed Ciencias Saude Porto Alegre, Dept Ciencias Basicas Saude, Rio Grande Do Sul - Brazil
[3] Univ Estadual Campinas, Inst Biol, Dept Biol Anim, Sao Paulo - Brazil
[4] Univ Estadual Campinas, Inst Biol, Programa Posgrad Biol Anim, Sao Paulo - Brazil
[5] Univ Fed Sao Carlos, Dept Biol, Ctr Ciencias Humanas & Biol, Sao Paulo - Brazil
Total Affiliations: 5
Document type: Journal article
Source: MOLLUSCAN RESEARCH; v. 35, n. 3, p. 182-187, JUL 3 2015.
Web of Science Citations: 0
Abstract

Systematics of Corbulidae supported by anatomical and conchological studies remains confused and controversial because of the considerable phenotypic plasticity of their shells. Ultrastructural spermatozoan study and molecular analyses have been performed to contribute valuable information, which could be used in taxonomy. Electron microscopy was used to analyse sperm cells from specimens of Caryocorbula (Gardner, 1926) exhibiting shell differences. The spermatozoon was of the aquasperm type, showing short acrosome, barrel-shaped nucleus, midpiece composed of four spherical mitochondria and simple flagellum. In addition, about 860base pairs of mitochondrial large ribosomal subunit (16S rRNA) were sequenced from each individual. The consistent similarity shared by spermatozoa and DNA sequences from all studied specimens indicated that they belonged to one coherent unit, Caryocorbula caribaea (d'Orbigny, 1853), despite the extraordinary plasticity exhibited by their shells. (AU)

FAPESP's process: 10/15486-8 - Ultrastructural study of gametes and molecular phylogeny of Tellinoidea species (Mollusca, Bivalvia)
Grantee:Shirlei Maria Recco-Pimentel
Support Opportunities: Regular Research Grants