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Title: Caste-specific and sex-specific expression of chemoreceptor genes in a termite
Authors: Mitaka, Yuki
Kobayashi, Kazuya
Mikheyev, Alexander
Tin, Mandy M. Y.
Watanabe, Yutaka
Matsuura, Kenji kyouindb researcher_resolver
Author's alias: 三高, 雄希
小林, 和也
ミケェエヴ, アレキサンダー
ティン, マンディ
松浦, 健二
Issue Date: 13-Jan-2016
Publisher: Public Library of Science
Journal title: PLOS ONE
Volume: 11
Issue: 1
Thesis number: e0146125
Abstract: The sophisticated colony organization of eusocial insects is primarily maintained through the utilization of pheromones. The regulation of these complex social interactions requires intricate chemoreception systems. The recent publication of the genome of Zootermopsis nevadensis opened a new avenue to study molecular basis of termite caste systems. Although there has been a growing interest in the termite chemoreception system that regulates their sophisticated caste system, the relationship between division of labor and expression of chemoreceptor genes remains to be explored. Using high-throughput mRNA sequencing (RNA-seq), we found several chemoreceptors that are differentially expressed among castes and between sexes in a subterranean termite Reticulitermes speratus. In total, 53 chemoreception-related genes were annotated, including 22 odorant receptors, 7 gustatory receptors, 12 ionotropic receptors, 9 odorant-binding proteins, and 3 chemosensory proteins. Most of the chemoreception-related genes had caste-related and sex-related expression patterns; in particular, some chemoreception genes showed king-biased or queen-biased expression patterns. Moreover, more than half of the genes showed significant age-dependent differences in their expression in female and/or male reproductives. These results reveal a strong relationship between the evolution of the division of labor and the regulation of chemoreceptor gene expression, thereby demonstrating the chemical communication and underlining chemoreception mechanism in social insects.
Description: 役割によって異なるシロアリの化学受容体の発現 : 高度な分業体制を支えるコミュニケーション機構解明へ期待. 京都大学プレスリリース. 2016-02-17.
Rights: © 2016 Mitaka et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
URI: http://hdl.handle.net/2433/212047
DOI(Published Version): 10.1371/journal.pone.0146125
PubMed ID: 26760975
Related Link: http://www.kyoto-u.ac.jp/ja/research/research_results/2015/160114_1.html
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