Sex produces as numerous and long-lived offspring as parthenogenesis in a new parthenogenetic insect-Reference-Cited by-同舟云学术

Sex produces as numerous and long-lived offspring as parthenogenesis in a new parthenogenetic insect

Published:2013-03 Issue:3 Volume:91 Page:187-190
ISSN:0008-4301
Container-title:Canadian Journal of Zoology
language:en
Short-container-title:Can. J. Zool.

Author:

Cocco J.¹,Butnariu A.R.²,Bessa E.³,Pasini A.⁴

Affiliation:

1. Departamento de Ciências Biológicas, Universidade do Estado de Mato Grosso, Tangará da Serra, MT, Brazil.

2. Departamento de Ciências Biológicas, Universidade do Estado de Mato Grosso, Tangará da Serra, MT, Brazil; Centro de Ciências Agrícolas, Departamento de Agronomia, Universidade Estadual de Londrina, Londrina, PR, Brazil.

3. Departamento de Ciências Biológicas, Universidade do Estado de Mato Grosso, Tangará da Serra, MT, Brazil; Programa de Pós-graduação em Biologia Animal, Departamento de Zoologia e Botânica, Universidade Estadual de São Paulo, São José do Rio Preto, SP, Brazil.

4. Centro de Ciências Agrícolas, Departamento de Agronomia, Universidade Estadual de Londrina, Londrina, PR, Brazil.

Abstract

Sex is a costly form of reproduction compared with parthenogenesis, but sex persists because of the more resistant and competitive descendants that it produces. We obtained thelytokous offspring from unmated female Doru lineare (Eschscholtz, 1822) earwigs, a species of insect in which parthenogenesis has never before been reported, and found that their number and survival rate did not differ from offspring of mated females. Current hypotheses support advantages of sex or parthenogenesis, but never equilibrium between them like the one reported in this paper. We suggest that parthenogenesis is how females multiply their entire genome and renew themselves.

Publisher

Canadian Science Publishing

Subject

Animal Science and Zoology,Ecology, Evolution, Behavior and Systematics

Link

http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2012-0289

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