Securing paternity in spiders? A review on occurrence and effects of mating plugs and male genital mutilation.
Low female mating frequencies often appear to be cases of direct male induction that can oppose female interests. Mating plugs are most obvious means leading to low degrees of multiple mating in females. In spiders, mating plugs are formed by a variety of amorphous materials, by the breakage of the male sperm transferring organ, or by the whole male that functions as a mating barrier. Our compilation of the available information on the presence of the various types of mating plugs suggests that plugs predominantly occur in entelegyne spiders. In this group, plugs do not interfere with oviposition since separate openings for insemination and oviposition are present. In contrast, mating plugs seem to be rare in haplogyne spiders that do not possess separate openings. The available experimental studies on the function of the different types of plugs suggest that plugs can be considered as male adaptations to avoid sperm competition. However, females in some cases were shown to have evolved means to prevent or control male manipulation or may selectively favour plug production in specific males, an aspect which has largely been neglected. In order to understand plug evolution and function we need to explore the morphological, behavioural and biochemical aspects involved and extend our approach to interactions between the sexes.
Uhl
Gabriele
G
Department of General and Systematic Zoology, Zoological Institute and Museum, University of Greifswald, 14787 Greifswald, Germany. gabriele.uhl@uni-greifswald.de
Nessler
Stefan H
SH
Schneider
Jutta M
JM
D000818:Animals; D005075:Biological Evolution; D005260:Female; D005835:Genitalia / Q000033:anatomy & histology / Q000502:physiology; D008297:Male; D012726:Sexual Behavior, Animal; D013112:Spiders / Q000033:anatomy & histology* / Q000235:genetics / Q000502:physiology
Front Zool. 2005 Jun 29;2(1):12
15987506
Proc Natl Acad Sci U S A. 2004 Apr 6;101(14):4883-7
15034176
Curr Biol. 2005 Feb 22;15(4):316-21
15723791
Curr Biol. 2004 Feb 3;14(3):R100-2
14986632
J Morphol. 2005 Jan;263(1):118-32
15562503
Proc Natl Acad Sci U S A. 2001 Jul 17;98(15):8692-6
11447265
Evolution. 2009 Jun;63(6):1451-63
19492993
Peptides. 2004 Sep;25(9):1477-90
15374649
Annu Rev Entomol. 2009;54:361-78
18793102
Evolution. 2004 Aug;58(8):1773-80
15446429
Zoology (Jena). 2007;110(5):398-408
17869076
Evolution. 2007 Jun;61(6):1301-15
17542841
Anim Behav. 1998 Oct;56(4):919-926
9790703
Tissue Cell. 2010 Feb;42(1):32-6
19643451
Trends Ecol Evol. 2004 Feb;19(2):87-93
16701234
J Theor Biol. 2008 Feb 7;250(3):524-31
18045619
Proc Biol Sci. 2009 Sep 7;276(1670):3105-11
19515667
Biol Rev Camb Philos Soc. 2005 Aug;80(3):363-85
16094804
Proc Biol Sci. 2007 Sep 22;274(1623):2337-41
17644504
Evolution. 2005 Jul;59(7):1400-5
16153026
Proc Biol Sci. 2003 Nov 7;270 Suppl 2:S183-5
14667377
Trends Ecol Evol. 1995 Dec;10(12):493-6
21237123