Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/11509
Title: Cytogenetics Analysis and Testis Morphology of Aquatic Species of the Families Belostomatidae, Gelastocoridae, Gerridae, Notonectidae, and Veliidae (Heteroptera)
Authors: Pereira, Luis Lenin Vicente
Alevi, Kaio Cesar Chaboli
Castanhole, Márcia Maria Urbanin
Moreira, F. F. F.
Barbosa, Juliana Freires
Itoyama, Mary Massumi
Affilliation: UNESP—Universidade Estadual Paulista. Departamento de Biologia, Laboratório de Citogenética e Molecular de Insetos, São Paulo. SP, Brasil.
UNESP—Universidade Estadual Paulista. Departamento de Biologia. Laboratório de Biologia Celular. São José do Rio Preto, SP, Brasil.
UNESP—Universidade Estadual Paulista. Departamento de Biologia, Laboratório de Citogenética e Molecular de Insetos, São Paulo. SP, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos. Rio de Janeiro, RJ, Brasil.
UFRJ—Universidade Federal do Rio de Janeiro. Instituto de Biologia. Departamento de Zoologia. Laboratório de Entomologia. Rio de Janeiro, RJ, Brasil.
UNESP—Universidade Estadual Paulista. Departamento de Biologia, Laboratório de Citogenética e Molecular de Insetos, São Paulo. SP, Brasil.
Abstract: The Heteroptera have holocentric chromosomes with kinetic activity restricted to the end of chromosomes.The first meiotic division is reductional for the autosomes and equational for the sexual. Only a few species of this suborder have been analyzed. In this study, we observed the morphologies of the testes of the Heteroptera species Belostoma anurum (Herrich-Scha¨ffer, 1948), Belostoma micantulum (Stal, 1858), Gelastocoris angulatus (Melin, 1929), Gelastocoris flavus flavus (Gue´rin-Me´neville, 1844), Rheumatobates crassifemur crassifemur (Esaki, 1926), Buenoa amnigenus (White, 1879), Buenoa unguis (Truxal, 1953), Martarega brasiliensis (Truxal, 1949), Martarega membrana´cea (White, 1879), Martarega uruguayensis (Berg, 1883), Rhagovelia tenuipes (Champion, 1898) and Rhagovelia zela (Drake, 1959).We found that the testes of these species can be round, round/spiral, or elongated/spiral. The size of the prophase I cells was found to vary, with the smallest ones being detected in B. micantulum and Rha. zela, the largest in G. f. flavus, and ones of intermediate size in R. c. crassifemur and M. brasiliensis. With respect to the chromosome complement, we verified the presence of 2n¼16 (14AþXY, B. micantulum and G. angulatus), 21 (20AþX0, R. c. crassifemur), 23 (22AþX0, Rha. zela and Rha. tenuipes), 25 (24AþX0, Bu. amnigenus and Bu. unguis; 22Aþ2mþX0, M. membranacea), 27 (24Aþ2mþX0, M. brasiliensis and M. uruguayensis), 29 (26AþX1X2Y, B. anurum), and 35 (30AþX1X2X3X4Y, G. f. flavus).We found that the features of spermatogenesis in these species are similar to those of other previously described Heteroptera species, differing only in testicular morphology, chromosome number, and sex chromosome system.
Keywords: Spermatogenesis
Cytogenetics of Heteroptera
Testicular lobe
Meiosis
Spermiogenesis
DeCS: Espermatogênese
Meiose
Citogenética
Heterópteros
Issue Date: 2015
Publisher: BioOne
Citation: PEREIRA, Luis Lenin Vicente; et al. Cytogenetics Analysis and Testis Morphology of Aquatic Species of the Families Belostomatidae, Gelastocoridae, Gerridae, Notonectidae, and Veliidae (Heteroptera). Journal of Insect Science, v.15, 10p, 2015.
DOI: 10.1093/jisesa/iev009
ISSN: 1536-2442
Copyright: open access
Appears in Collections:IOC - Artigos de Periódicos

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