Probing termite social systems through allozyme and mtDNA analysis: a case study of Nasutitermes nigriceps and Nasutitermes costalis (Isoptera, Termitidae)
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Certain termite genera exhibit a high degree of variation with respect to the number and developmental origin of reproductives within single colonies. Although such variation is expected to influence patterns of intracolonial competition and cooperation, it has thus far been difficult to investigate. This study exploits both allozyme and mtDNA analysis of colony offspring to infer the reproductive composition of single colonies. This study focuses on two species of Nasutitermes which differ in their social structure - colonies of N. nigriceps are generally led by a single mated pair, while those of N. costalis are regularly polygamous. MtDNA analysis on N. nigriceps shows that all colony members share the same haplotype, even in those cases where allozyme genotype frequencies suggest that colony offspring are derived from more than one reproductive pair. Similar work on N. costalis revealed a complete lack of mtDNA and allozyme variation. It is discussed how breeding system shifts from monogamy to polygamy in termites may be facilitated by population bottlenecks which reduce genetic diversity.
- Probing termite social systems through allozyme and mtDNA analysis: a case study of Nasutitermes nigriceps and Nasutitermes costalis (Isoptera, Termitidae)
Volume 45, Issue 3 , pp 289-299
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- Birkhäuser Verlag
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- Key words: Reproduction, termites, population genetics, allozyme, mtDNA.
- Author Affiliations
- A1. Present address and correspondence: School of Genetics and Human Variation, La Trobe University, Bundoora, Victoria 3083, Australia, e-mail: firstname.lastname@example.org, AU
- A2. Department of Zoology, University of Guelph, Guelph, Ontario N1G 2W1, Canada, CA