Independence of genetic variation between circadian rhythm and development time in the seed beetle, Callosobruchus chinensis

Tomohiro Harano, Takahisa Miyatake

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A positive genetic correlation between periods of circadian rhythm and developmental time supports the hypothesis that circadian clocks are implicated in the timing of development. Empirical evidence for this genetic correlation in insects has been documented in two fly species. In contrast, here we show that there is no evidence of genetic correlation between circadian rhythm and development time in the adzuki bean beetle, Callosobruchus chinensis. This species has variation that is explained by a major gene in the expression and period length of circadian rhythm between strains. In this study, we found genetic variation in development time between the strains. The development time was not covaried with either the incidence or the period length of circadian rhythm among the strains. Crosses between strains suggest that development time is controlled by a polygene. In the F2 individuals from the crosses, the circadian rhythm is attributable to allelic variation in the major gene. Across the F2 individuals, development time was not correlated with either the expression or the period length of circadian rhythm. Thus, we found no effects of major genes responsible for variation in the circadian rhythm on development time in C. chinensis. Our findings collectively give no support to the hypothesis that the circadian clock is involved in the regulation of development time in this species.

Original languageEnglish
Pages (from-to)415-420
Number of pages6
JournalJournal of Insect Physiology
Volume57
Issue number3
DOIs
Publication statusPublished - Mar 2011

Fingerprint

Callosobruchus chinensis
Bruchidae
Beetles
Circadian Rhythm
circadian rhythm
Seeds
genetic variation
major genes
genetic correlation
Circadian Clocks
personal development
Diptera
Genes
Insects
Gene Expression
incidence
gene expression
Incidence

Keywords

  • Bean beetle
  • Biological clock
  • Callosobruchus
  • Circadian period
  • Development time
  • Genetic correlation

ASJC Scopus subject areas

  • Insect Science
  • Physiology

Cite this

@article{87a6267ab2f042f2990eea9c3c17cfc2,
title = "Independence of genetic variation between circadian rhythm and development time in the seed beetle, Callosobruchus chinensis",
abstract = "A positive genetic correlation between periods of circadian rhythm and developmental time supports the hypothesis that circadian clocks are implicated in the timing of development. Empirical evidence for this genetic correlation in insects has been documented in two fly species. In contrast, here we show that there is no evidence of genetic correlation between circadian rhythm and development time in the adzuki bean beetle, Callosobruchus chinensis. This species has variation that is explained by a major gene in the expression and period length of circadian rhythm between strains. In this study, we found genetic variation in development time between the strains. The development time was not covaried with either the incidence or the period length of circadian rhythm among the strains. Crosses between strains suggest that development time is controlled by a polygene. In the F2 individuals from the crosses, the circadian rhythm is attributable to allelic variation in the major gene. Across the F2 individuals, development time was not correlated with either the expression or the period length of circadian rhythm. Thus, we found no effects of major genes responsible for variation in the circadian rhythm on development time in C. chinensis. Our findings collectively give no support to the hypothesis that the circadian clock is involved in the regulation of development time in this species.",
keywords = "Bean beetle, Biological clock, Callosobruchus, Circadian period, Development time, Genetic correlation",
author = "Tomohiro Harano and Takahisa Miyatake",
year = "2011",
month = "3",
doi = "10.1016/j.jinsphys.2010.12.012",
language = "English",
volume = "57",
pages = "415--420",
journal = "Journal of Insect Physiology",
issn = "0022-1910",
publisher = "Elsevier Limited",
number = "3",

}

TY - JOUR

T1 - Independence of genetic variation between circadian rhythm and development time in the seed beetle, Callosobruchus chinensis

AU - Harano, Tomohiro

AU - Miyatake, Takahisa

PY - 2011/3

Y1 - 2011/3

N2 - A positive genetic correlation between periods of circadian rhythm and developmental time supports the hypothesis that circadian clocks are implicated in the timing of development. Empirical evidence for this genetic correlation in insects has been documented in two fly species. In contrast, here we show that there is no evidence of genetic correlation between circadian rhythm and development time in the adzuki bean beetle, Callosobruchus chinensis. This species has variation that is explained by a major gene in the expression and period length of circadian rhythm between strains. In this study, we found genetic variation in development time between the strains. The development time was not covaried with either the incidence or the period length of circadian rhythm among the strains. Crosses between strains suggest that development time is controlled by a polygene. In the F2 individuals from the crosses, the circadian rhythm is attributable to allelic variation in the major gene. Across the F2 individuals, development time was not correlated with either the expression or the period length of circadian rhythm. Thus, we found no effects of major genes responsible for variation in the circadian rhythm on development time in C. chinensis. Our findings collectively give no support to the hypothesis that the circadian clock is involved in the regulation of development time in this species.

AB - A positive genetic correlation between periods of circadian rhythm and developmental time supports the hypothesis that circadian clocks are implicated in the timing of development. Empirical evidence for this genetic correlation in insects has been documented in two fly species. In contrast, here we show that there is no evidence of genetic correlation between circadian rhythm and development time in the adzuki bean beetle, Callosobruchus chinensis. This species has variation that is explained by a major gene in the expression and period length of circadian rhythm between strains. In this study, we found genetic variation in development time between the strains. The development time was not covaried with either the incidence or the period length of circadian rhythm among the strains. Crosses between strains suggest that development time is controlled by a polygene. In the F2 individuals from the crosses, the circadian rhythm is attributable to allelic variation in the major gene. Across the F2 individuals, development time was not correlated with either the expression or the period length of circadian rhythm. Thus, we found no effects of major genes responsible for variation in the circadian rhythm on development time in C. chinensis. Our findings collectively give no support to the hypothesis that the circadian clock is involved in the regulation of development time in this species.

KW - Bean beetle

KW - Biological clock

KW - Callosobruchus

KW - Circadian period

KW - Development time

KW - Genetic correlation

UR - http://www.scopus.com/inward/record.url?scp=79951513741&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79951513741&partnerID=8YFLogxK

U2 - 10.1016/j.jinsphys.2010.12.012

DO - 10.1016/j.jinsphys.2010.12.012

M3 - Article

C2 - 21211539

AN - SCOPUS:79951513741

VL - 57

SP - 415

EP - 420

JO - Journal of Insect Physiology

JF - Journal of Insect Physiology

SN - 0022-1910

IS - 3

ER -