Sterile males in a parasitoid wasp with complementary sex determination: from fitness costs to population extinction

Autor: Emmanuel Desouhant, Chloé Vayssade, Alexandra Auguste, Anna Chuine, Xavier Fauvergue
Přispěvatelé: Evolution, adaptation et comportement, Département écologie évolutive [LBBE], Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS), Institut Sophia Agrobiotech (ISA), Centre National de la Recherche Scientifique (CNRS)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut National de la Recherche Agronomique (INRA), Agence Nationale de la Recherche (Sextinction project) [ANR-2010-BLAN-1717], Federation de Recherche sur la Biodiversite (VORTEX project) [APP-IN-2009-052], Institut National de la Recherche Agronomique (INRA)-Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS), Fauvergue, Xavier
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Male
Sex determination
Extinction vortex
Inbreeding
Inbreeding depression
Diploid males
Hymenoptera
Mate-choice
Population biology
0106 biological sciences
[SDV]Life Sciences [q-bio]
Population Dynamics
Wasps
Haploidy
01 natural sciences
Sexual Behavior
Animal
stérilité mâle
Environmental Science(all)
General Environmental Science
détermination du sexe
0303 health sciences
education.field_of_study
Ecology
Reproduction
dépression de consanguinité
Genetic load
Mate choice
[SDE]Environmental Sciences
Female
Research Article
mâle diploïde
Population
Zoology
Biology
010603 evolutionary biology
Parasitoid wasp
03 medical and health sciences
Animals
education
Infertility
Male
Ecology
Evolution
Behavior and Systematics
030304 developmental biology
fungi
insecta
Small population size
Sex Determination Processes
biology.organism_classification
Diploidy
extinction d'espèce
Genetic Fitness
Zdroj: BMC Ecology
BMC Ecology, BioMed Central, 2015, 15, pp.13
BMC Ecology, BioMed Central, 2015, 15, ⟨10.1186/s12898-014-0032-6⟩
BMC Ecology, 2015, 15, ⟨10.1186/s12898-014-0032-6⟩
BMC Ecology (15), . (2015)
ISSN: 1472-6785
DOI: 10.1186/s12898-014-0032-6⟩
Popis: Background Single-locus complementary sex determination (sl-CSD), which occurs in some insects of the order Hymenoptera, imposes a heavy genetic load that can drive small populations to extinction. The core process in these species is the development of individuals homozygous at the sex-determining locus into unfit diploid males. The risk of extinction of populations with sl-CSD is theoretically much higher if diploid males are viable and capable of mating but sterile, because diploid males then decrease the reproductive output of both their parents and the females with which they mate. Results In the parasitoid wasp Venturia canescens (Hymenoptera: Ichneumonidae), diploid males resembled their haploid counterparts in most respects, but their mating success was nevertheless lower than that of haploid males, especially when the two types of males were placed in competition. Furthermore, although diploid males transferred viable sperm during copulation, they sired no daughters: the females with which they mated produced only sons, like virgin females. A simulation model combining behavior, genetics and demography demonstrated that for two alternative hypotheses concerning the fertilization success of diploid sperm, the mating success of diploid males strongly affected population dynamics. Conclusion The performance of diploid males should be estimated in competitive situations. It is a crucial determinant of the probability of extinction. Electronic supplementary material The online version of this article (doi:10.1186/s12898-014-0032-6) contains supplementary material, which is available to authorized users.
Databáze: OpenAIRE
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