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Association between Circadian Clock Genes and Diapause Incidence in Drosophila triauraria

Diapause is an adaptive response triggered by seasonal photoperiodicity to overcome unfavorable seasons. The photoperiodic clock is a system that controls seasonal physiological processes, but our knowledge about its physiological mechanisms and genetic architecture remains incomplete. The circadian...

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Detalles Bibliográficos
Autores principales: Yamada, Hirokazu, Yamamoto, Masa-Toshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3229484/
https://www.ncbi.nlm.nih.gov/pubmed/22164210
http://dx.doi.org/10.1371/journal.pone.0027493
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author Yamada, Hirokazu
Yamamoto, Masa-Toshi
author_facet Yamada, Hirokazu
Yamamoto, Masa-Toshi
author_sort Yamada, Hirokazu
collection PubMed
description Diapause is an adaptive response triggered by seasonal photoperiodicity to overcome unfavorable seasons. The photoperiodic clock is a system that controls seasonal physiological processes, but our knowledge about its physiological mechanisms and genetic architecture remains incomplete. The circadian clock is another system that controls daily rhythmic physiological phenomena. It has been argued that there is a connection between the two clocks. To examine the genetic connection between them, we analyzed the associations of five circadian clock genes (period, timeless, Clock, cycle and cryptochrome) with the occurrence of diapause in Drosophila triauraria, which shows a robust reproductive diapause with clear photoperiodicity. Non-diapause strains found in low latitudes were compared in genetic crosses with the diapause strain, in which the diapause trait is clearly dominant. Single nucleotide polymorphism and deletion analyses of the five circadian clock genes in backcross progeny revealed that allelic differences in timeless and cryptochrome between the strains were additively associated with the differences in the incidence of diapause. This suggests that there is a molecular link between certain circadian clock genes and the occurrence of diapause.
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spelling pubmed-32294842011-12-07 Association between Circadian Clock Genes and Diapause Incidence in Drosophila triauraria Yamada, Hirokazu Yamamoto, Masa-Toshi PLoS One Research Article Diapause is an adaptive response triggered by seasonal photoperiodicity to overcome unfavorable seasons. The photoperiodic clock is a system that controls seasonal physiological processes, but our knowledge about its physiological mechanisms and genetic architecture remains incomplete. The circadian clock is another system that controls daily rhythmic physiological phenomena. It has been argued that there is a connection between the two clocks. To examine the genetic connection between them, we analyzed the associations of five circadian clock genes (period, timeless, Clock, cycle and cryptochrome) with the occurrence of diapause in Drosophila triauraria, which shows a robust reproductive diapause with clear photoperiodicity. Non-diapause strains found in low latitudes were compared in genetic crosses with the diapause strain, in which the diapause trait is clearly dominant. Single nucleotide polymorphism and deletion analyses of the five circadian clock genes in backcross progeny revealed that allelic differences in timeless and cryptochrome between the strains were additively associated with the differences in the incidence of diapause. This suggests that there is a molecular link between certain circadian clock genes and the occurrence of diapause. Public Library of Science 2011-12-02 /pmc/articles/PMC3229484/ /pubmed/22164210 http://dx.doi.org/10.1371/journal.pone.0027493 Text en Yamada, Yamamoto. http://creativecommons.org/licenses/by/4.0/ 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 properly credited.
spellingShingle Research Article
Yamada, Hirokazu
Yamamoto, Masa-Toshi
Association between Circadian Clock Genes and Diapause Incidence in Drosophila triauraria
title Association between Circadian Clock Genes and Diapause Incidence in Drosophila triauraria
title_full Association between Circadian Clock Genes and Diapause Incidence in Drosophila triauraria
title_fullStr Association between Circadian Clock Genes and Diapause Incidence in Drosophila triauraria
title_full_unstemmed Association between Circadian Clock Genes and Diapause Incidence in Drosophila triauraria
title_short Association between Circadian Clock Genes and Diapause Incidence in Drosophila triauraria
title_sort association between circadian clock genes and diapause incidence in drosophila triauraria
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3229484/
https://www.ncbi.nlm.nih.gov/pubmed/22164210
http://dx.doi.org/10.1371/journal.pone.0027493
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