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  • 1
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    Global invasion history of the fire ant Solenopsis invicta (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-02-26
    Description: The fire ant Solenopsis invicta is a significant pest that was inadvertently introduced into the southern United States almost a century ago and more recently into California and other regions of the world. An assessment of genetic variation at a diverse set of molecular markers in 2144 fire ant colonies from 75 geographic sites worldwide revealed that at least nine separate introductions of S. invicta have occurred into newly invaded areas and that the main southern U.S. population is probably the source of all but one of these introductions. The sole exception involves a putative serial invasion from the southern United States to California to Taiwan. These results illustrate in stark fashion a severe negative consequence of an increasingly massive and interconnected global trade and travel system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ascunce, Marina S -- Yang, Chin-Cheng -- Oakey, Jane -- Calcaterra, Luis -- Wu, Wen-Jer -- Shih, Cheng-Jen -- Goudet, Jerome -- Ross, Kenneth G -- Shoemaker, DeWayne -- New York, N.Y. -- Science. 2011 Feb 25;331(6020):1066-8. doi: 10.1126/science.1198734.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉USDA-ARS Center for Medical, Agricultural, and Veterinary Entomology, 1600/1700 Southwest 23rd Drive, Gainesville, FL, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21350177" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Ants/genetics ; Asia ; Australia ; Bayes Theorem ; Commerce ; Computer Simulation ; DNA, Mitochondrial/genetics ; Female ; Genes, Insect ; Genetic Variation ; Genotype ; Haplotypes ; *Introduced Species ; Male ; Microsatellite Repeats ; Molecular Sequence Data ; Population Dynamics ; Sequence Analysis, DNA ; South America ; Travel ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Identification of a major gene regulating complex social behavior (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-11-17
    Description: Colony queen number, a major feature of social organization in fire ants, is associated with worker genotypes at the gene Gp-9. We sequenced Gp-9 and found that it encodes a pheromone-binding protein, a crucial molecular component in chemical recognition of conspecifics. This suggests that differences in worker Gp-9 genotypes between social forms may cause differences in workers' abilities to recognize queens and regulate their numbers. Analyses of sequence evolution indicate that regulation of social organization by Gp-9 is conserved in South American fire ant species exhibiting social polymorphism and suggest that positive selection has driven the divergence between the alleles associated with alternate social organizations. This study demonstrates that single genes of major effect can underlie the expression of complex behaviors important in social evolution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Krieger, Michael J B -- Ross, Kenneth G -- New York, N.Y. -- Science. 2002 Jan 11;295(5553):328-32. Epub 2001 Nov 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Entomology, University of Georgia, Athens, GA 30602-2603, USA. mkrieger@arches.uga.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11711637" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Ants/chemistry/*genetics/physiology ; Argentina ; Base Sequence ; *Behavior, Animal ; Biological Evolution ; Brazil ; Carrier Proteins/chemistry/*genetics/physiology ; Evolution, Molecular ; Female ; *Genes, Insect ; Genotype ; Insect Proteins/chemistry/*genetics/physiology ; Molecular Sequence Data ; Phylogeny ; RNA, Messenger/chemistry/genetics ; *Social Behavior ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
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