Mechanical incompatibility caused by modifications of multiple male genital structures using genomic introgression in Drosophila*

Kentaro M. Tanaka, Yoshitaka Kamimura, Aya Takahashi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Mechanical incompatibility of male and female genitalia is common in animals with internal fertilization. However, our knowledge regarding the precise mechanisms is limited. One key question regards the susceptibility of the match between male and female genitalia to morphological modification. To address this issue, we generated six different second-chromosome introgression lines possessing partially Drosophila mauritiana-like genital morphology in multiple structures in D. simulans background. Three of the six introgression males showed elevated mobility at some stages during copulation with D. simulans females; this was assumed to be an indication of genital mismatch. Notably, one of the introgression males with D. mauritiana-like enlarged anal plates showed occasional leakage of adhesive ejaculate on the body surface when mated with pure D. simulans females, suggesting apparent structural incompatibility in genital coupling. These observations suggested that both sexual and natural selection shape the anal plate morphology, highlighting the role of this structure as an important component of mechanical isolation. Partial replacement (introgression) by a sibling species genome can induce perturbations in genital coupling mechanics, suggesting that genital compatibility can be susceptible to subtle genomic changes at the early stages of divergence in these species.

Original languageEnglish
Pages (from-to)2406-2418
Number of pages13
JournalEvolution
Volume72
Issue number11
DOIs
Publication statusPublished - 2018 Nov 1

Fingerprint

Male Genitalia
Female Genitalia
incompatibility
introgression
male genitalia
genitalia
Drosophila
genomics
Copulation
Drosophila mauritiana
Genetic Selection
Mechanics
Fertilization
Adhesives
female genitalia
Chromosomes
Genome
copulation
sexual selection
Drosophila simulans

Keywords

  • Drosophila
  • male genital evolution
  • mating incompatibility

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Agricultural and Biological Sciences(all)

Cite this

Mechanical incompatibility caused by modifications of multiple male genital structures using genomic introgression in Drosophila*. / Tanaka, Kentaro M.; Kamimura, Yoshitaka; Takahashi, Aya.

In: Evolution, Vol. 72, No. 11, 01.11.2018, p. 2406-2418.

Research output: Contribution to journalArticle

@article{82fa44be11a14748a2cfedfa8b256d6d,
title = "Mechanical incompatibility caused by modifications of multiple male genital structures using genomic introgression in Drosophila*",
abstract = "Mechanical incompatibility of male and female genitalia is common in animals with internal fertilization. However, our knowledge regarding the precise mechanisms is limited. One key question regards the susceptibility of the match between male and female genitalia to morphological modification. To address this issue, we generated six different second-chromosome introgression lines possessing partially Drosophila mauritiana-like genital morphology in multiple structures in D. simulans background. Three of the six introgression males showed elevated mobility at some stages during copulation with D. simulans females; this was assumed to be an indication of genital mismatch. Notably, one of the introgression males with D. mauritiana-like enlarged anal plates showed occasional leakage of adhesive ejaculate on the body surface when mated with pure D. simulans females, suggesting apparent structural incompatibility in genital coupling. These observations suggested that both sexual and natural selection shape the anal plate morphology, highlighting the role of this structure as an important component of mechanical isolation. Partial replacement (introgression) by a sibling species genome can induce perturbations in genital coupling mechanics, suggesting that genital compatibility can be susceptible to subtle genomic changes at the early stages of divergence in these species.",
keywords = "Drosophila, male genital evolution, mating incompatibility",
author = "Tanaka, {Kentaro M.} and Yoshitaka Kamimura and Aya Takahashi",
year = "2018",
month = "11",
day = "1",
doi = "10.1111/evo.13592",
language = "English",
volume = "72",
pages = "2406--2418",
journal = "Evolution; international journal of organic evolution",
issn = "0014-3820",
publisher = "Society for the Study of Evolution",
number = "11",

}

TY - JOUR

T1 - Mechanical incompatibility caused by modifications of multiple male genital structures using genomic introgression in Drosophila*

AU - Tanaka, Kentaro M.

AU - Kamimura, Yoshitaka

AU - Takahashi, Aya

PY - 2018/11/1

Y1 - 2018/11/1

N2 - Mechanical incompatibility of male and female genitalia is common in animals with internal fertilization. However, our knowledge regarding the precise mechanisms is limited. One key question regards the susceptibility of the match between male and female genitalia to morphological modification. To address this issue, we generated six different second-chromosome introgression lines possessing partially Drosophila mauritiana-like genital morphology in multiple structures in D. simulans background. Three of the six introgression males showed elevated mobility at some stages during copulation with D. simulans females; this was assumed to be an indication of genital mismatch. Notably, one of the introgression males with D. mauritiana-like enlarged anal plates showed occasional leakage of adhesive ejaculate on the body surface when mated with pure D. simulans females, suggesting apparent structural incompatibility in genital coupling. These observations suggested that both sexual and natural selection shape the anal plate morphology, highlighting the role of this structure as an important component of mechanical isolation. Partial replacement (introgression) by a sibling species genome can induce perturbations in genital coupling mechanics, suggesting that genital compatibility can be susceptible to subtle genomic changes at the early stages of divergence in these species.

AB - Mechanical incompatibility of male and female genitalia is common in animals with internal fertilization. However, our knowledge regarding the precise mechanisms is limited. One key question regards the susceptibility of the match between male and female genitalia to morphological modification. To address this issue, we generated six different second-chromosome introgression lines possessing partially Drosophila mauritiana-like genital morphology in multiple structures in D. simulans background. Three of the six introgression males showed elevated mobility at some stages during copulation with D. simulans females; this was assumed to be an indication of genital mismatch. Notably, one of the introgression males with D. mauritiana-like enlarged anal plates showed occasional leakage of adhesive ejaculate on the body surface when mated with pure D. simulans females, suggesting apparent structural incompatibility in genital coupling. These observations suggested that both sexual and natural selection shape the anal plate morphology, highlighting the role of this structure as an important component of mechanical isolation. Partial replacement (introgression) by a sibling species genome can induce perturbations in genital coupling mechanics, suggesting that genital compatibility can be susceptible to subtle genomic changes at the early stages of divergence in these species.

KW - Drosophila

KW - male genital evolution

KW - mating incompatibility

UR - http://www.scopus.com/inward/record.url?scp=85053497084&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85053497084&partnerID=8YFLogxK

U2 - 10.1111/evo.13592

DO - 10.1111/evo.13592

M3 - Article

C2 - 30198555

AN - SCOPUS:85053497084

VL - 72

SP - 2406

EP - 2418

JO - Evolution; international journal of organic evolution

JF - Evolution; international journal of organic evolution

SN - 0014-3820

IS - 11

ER -