Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2010-5-3
pubmed:abstractText
The evolutionary history of diet breadth expansion and intergeneric host shifts in the seed beetle genus Mimosestes were reconstructed to investigate the process of host range expansion in phytophagous insects. The evolutionary correlation between diet breadth and variation in oviposition behavior of Mimosestes was also examined to estimate the process of generalist evolution within the genus. Ancestral state reconstruction based on a molecular phylogeny inferred from three mitochondrial markers (16S rRNA, 12S rRNA, and COI) and one nuclear marker (EF-1alpha) revealed that host utilization patterns were shaped by repeated colonizations to novel or pre-adapted host plants. Neither plant genus and species group level host conservatism nor an evolutionary tendency toward specialization was found in the genus, contrary to the expectations of plant-insect co-evolutionary theory. In addition, statistical analyses revealed that diet breadth was significantly correlated with oviposition behavior, suggesting that behavioral factors such as the oviposition preferences of female seed beetles affect the expansion of diet breadth in generalists.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1095-9513
pubmed:author
pubmed:copyrightInfo
2010 Elsevier Inc. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
55
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
816-32
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Evolution of host utilization patterns in the seed beetle genus Mimosestes Bridwell (Coleoptera: Chrysomelidae: Bruchinae).
pubmed:affiliation
Department of General Systems Studies, Graduate School of Arts and Sciences, University of Tokyo, Komaba 3-8-1, Meguro, Tokyo 153-8902, Japan. seedbeetle@yahoo.co.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't