Sexual conflict does not drive reproductive isolation in experimental populations of Drosophila pseudoobscura

被引:36
作者
Bacigalupe, L. D.
Crudgington, H. S.
Hunter, F.
Moore, A. J.
Snook, R. R.
机构
[1] Univ Sheffield, Dept Anim & Plant Sci, Sheffield S10 2TN, S Yorkshire, England
[2] Univ Exeter, Sch Biosci, Ctr Ecol & Conservat, Penryn, England
关键词
copulation duration; mating speed; reproductive isolation; sexual conflict; sexual selection; sexually antagonistic coevolution; speciation;
D O I
10.1111/j.1420-9101.2007.01389.x
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Sexual conflict has been predicted to drive reproductive isolation by generating arbitrary but rapid coevolutionary changes in reproductive traits among allopatric populations. A testable prediction of this proposal is that allopatric populations experiencing different levels of sexual conflict should exhibit different levels of reproductive isolation. We tested this prediction using experimentally evolved populations of the promiscuous Drosophila pseudoobscura. We manipulated sexual conflict by enforcing either monogamy, maintaining natural levels of promiscuity, or elevating promiscuity. Within each treatment, we carried out sympatric and allopatric crosses using replicated populations and examined pre-zygotic (number of mating pairs, mating speed and copulation duration) and post-zygotic (hybrid inviability and sterility) indicators of reproductive isolation. After 50 generations of selection, none of the measures conformed to predictions of sexual conflict driving reproductive isolation. Our results cannot be explained by lack of genetic variation or weak selection and suggest that sexual conflict may not be a widespread engine of speciation.
引用
收藏
页码:1763 / 1771
页数:9
相关论文
共 49 条
[1]   FREQUENT MULTIPLE INSEMINATION IN A NATURAL-POPULATION OF DROSOPHILA-PSEUDOOBSCURA [J].
ANDERSON, WW .
AMERICAN NATURALIST, 1974, 108 (963) :709-711
[2]  
[Anonymous], 1972, SEXUAL SELECTION DES
[3]  
ANRQVIST G, 2005, MONOGRAPHS BEHAV ECO
[4]   Sexual conflict promotes speciation in insects [J].
Arnqvist, G ;
Edvardsson, M ;
Friberg, U ;
Nilsson, T .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2000, 97 (19) :10460-10464
[5]   SEXUAL SELECTION AND TAXONOMIC DIVERSITY IN PASSERINE BIRDS [J].
BARRACLOUGH, TG ;
HARVEY, PH ;
NEE, S .
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, 1995, 259 (1355) :211-215
[6]   INTRA-SEXUAL SELECTION IN DROSOPHILA [J].
BATEMAN, AJ .
HEREDITY, 1948, 2 (03) :349-368
[7]  
Boughman JW, 2005, EVOLUTION, V59, P361
[8]   SEXUAL ISOLATION AND COURTSHIP BEHAVIOR IN DROSOPHILA-SIMULANS, DROSOPHILA-MAURITIANA, AND THEIR INTERSPECIFIC HYBRIDS [J].
COBB, M ;
BURNET, B ;
CONNOLLY, K .
BEHAVIOR GENETICS, 1988, 18 (02) :211-225
[9]   MULTIPLE INSEMINATION AND MALE SEXUAL SELECTION IN NATURAL-POPULATIONS OF DROSOPHILA-PSEUDOOBSCURA [J].
COBBS, G .
AMERICAN NATURALIST, 1977, 111 (980) :641-656
[10]   Courtship reduces longevity of male Drosophila melanogaster [J].
Cordts, R ;
Partridge, L .
ANIMAL BEHAVIOUR, 1996, 52 :269-278