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Journal of Insect Behavior, Vol. 16, No. 6, November 2003 ( C 2003) An Analysis of Single Clutch Paternity in the
 

Summary: Journal of Insect Behavior, Vol. 16, No. 6, November 2003 ( C 2003)
An Analysis of Single Clutch Paternity in the
Burrower Bug Sehirus cinctus Using Microsatellites
Jeremy M. Brown,1,2
Aneil F. Agrawal,1
and Edmund D. Brodie III1
Accepted July 16, 2003; revised August 13, 2003
Recent studies of the burrower bug, Sehirus cinctus, have examined the genetic
basis of parental care. An understanding of the burrower bug mating system,
and the subsequent pattern of offspring relatedness that this system generates,
is critical to further interpret genetic data. To this end, we developed three
consistently amplifiable highly polymorphic microsatellite loci and used them
to determine genotypic patterns at the level of both the population and the
single clutch. We found that all clutches were sired by single males. Further,
we find no evidence for inbreeding. We hypothesize that single paternity within
a clutch may play an important role in reducing the potential for sibling rivalry,
by increasing the relatedness among clutchmates.
KEY WORDS: microsatellites; Cydnidae; Hemiptera; mating system; paternity; inbreeding.
INTRODUCTION
Investigations of mating system are important because mating system affects

  

Source: Agrawal, Aneil F. - Department of Ecology and Evolutionary Biology, University of Toronto
Brodie III, Edmund D. - Department of Biology, University of Virginia

 

Collections: Environmental Sciences and Ecology