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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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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2011
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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. |
format | Online Article Text |
id | pubmed-3229484 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
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
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title_full | Association between Circadian Clock Genes and Diapause Incidence in Drosophila triauraria
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title_fullStr | Association between Circadian Clock Genes and Diapause Incidence in Drosophila triauraria
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title_full_unstemmed | Association between Circadian Clock Genes and Diapause Incidence in Drosophila triauraria
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title_short | Association between Circadian Clock Genes and Diapause Incidence in Drosophila triauraria
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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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