RRC ID 30464
著者 Matsuo T, Sugaya S, Yasukawa J, Aigaki T, Fuyama Y.
タイトル Odorant-binding proteins OBP57d and OBP57e affect taste perception and host-plant preference in Drosophila sechellia.
ジャーナル PLoS Biol
Abstract Despite its morphological similarity to the other species in the Drosophila melanogaster species complex, D. sechellia has evolved distinct physiological and behavioral adaptations to its host plant Morinda citrifolia, commonly known as Tahitian Noni. The odor of the ripe fruit of M. citrifolia originates from hexanoic and octanoic acid. D. sechellia is attracted to these two fatty acids, whereas the other species in the complex are repelled. Here, using interspecies hybrids between D. melanogaster deficiency mutants and D. sechellia, we showed that the Odorant-binding protein 57e (Obp57e) gene is involved in the behavioral difference between the species. D. melanogaster knock-out flies for Obp57e and Obp57d showed altered behavioral responses to hexanoic acid and octanoic acid. Furthermore, the introduction of Obp57d and Obp57e from D. simulans and D. sechellia shifted the oviposition site preference of D. melanogaster Obp57d/e(KO) flies to that of the original species, confirming the contribution of these genes to D. sechellia's specialization to M. citrifolia. Our finding of the genes involved in host-plant determination may lead to further understanding of mechanisms underlying taste perception, evolution of plant-herbivore interactions, and speciation.
巻・号 5(5)
ページ e118
公開日 2007-5-1
DOI 10.1371/journal.pbio.0050118
PII 06-PLBI-RA-0167R3
PMID 17456006
PMC PMC1854911
MeSH Adaptation, Biological Amino Acid Sequence Animals Base Sequence Drosophila / genetics* Feeding Behavior Molecular Sequence Data Morinda Mutagenesis, Site-Directed Oviposition / genetics Perception / physiology* Plants, Toxic Receptors, Odorant / genetics Receptors, Odorant / physiology* Taste / physiology*
IF 7.076
引用数 238
WOS 分野 BIOLOGY BIOCHEMISTRY & MOLECULAR BIOLOGY
リソース情報
ショウジョウバエ DGRC#109683