Evolution of correlated characters

Price, Trevor D.; Langen, Tom A.

doi:10.1016/0169-5347(92)90229-5

Cited by 165 publications

(118 citation statements)

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“…(Lande, 1979;Arnold, 1987;Price & Langen, 1992). Results of the present study indicate that short-term selection on JHE should result in correlated responses to selection on JHB and GE.…”

Section: Quantitative Genetics: Correlationsmentioning

confidence: 79%

Quantitative genetics of juvenile hormone esterase, juvenile hormone binding and general esterase activity in the cricket Gryllus assimilis

Zera

1996

Heredity

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Heritabilities and genetic, environmental and phenotypic correlations were estimated for two endocrine traits (juvenile hormone esterase (JHE) and juvenile hormone binding (JHB) activity) and one non-endocrine trait (general esterase activity (GE)) in the cricket G,yllus assimilis. Genetic parameters were estimated in three stages of the last stadium as well as in the entire last stadium. Significant additive genetic heritabilities were observed for each trait for activities pooled over all developmental stages. For JHE and JHB, significant heritabilities were also observed within most developmental stages. This indicates that these endocrine features have sufficient genetic variability during most periods of the last stadium to respond rapidly to selection. Significant phenotypic correlations were observed in eight of nine pairwise comparisons between the three traits in the three stages. Significant additive genetic correlations were observed between JHE and JHB and between JHE and GE for activities pooled over all developmental stages. Nearly all phenotypic and additive genetic correlations between the same trait in different developmental stages were significant. This indicates that these three traits are highly intercorrelated and should evolve in concert. Of particular note is the positive phenotypic and genetic correlation between JHE and JHB which suggests that these two traits may be coordinately regulated and may function in concert to reduce the JH titre. This is, to our knowledge, the first quantitative-genetic analysis of hormonal features of an insect.

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“…(Lande, 1979;Arnold, 1987;Price & Langen, 1992). Results of the present study indicate that short-term selection on JHE should result in correlated responses to selection on JHB and GE.…”

Section: Quantitative Genetics: Correlationsmentioning

confidence: 79%

Quantitative genetics of juvenile hormone esterase, juvenile hormone binding and general esterase activity in the cricket Gryllus assimilis

Zera

1996

Heredity

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“…Trait correlations between males and females severely influence the evolutionary dynamics of the traits (Price & Langen 1992;Roff 2002). They have been explored mainly in the field of sexual selection (e.g.…”

Section: Discussionmentioning

confidence: 99%

“…In contrast to the amount of work investigating the relations between behavioural phenotypes within honeybee workers, correlations across castes or sexes have not been addressed (but see Giray & Robinson 1996), even though male-female correlations are of general importance to understand the evolution of animal behaviour (Price & Langen 1992;McGlothlin et al 2004). Male honeybees (drones) serve an exclusively reproductive function.…”

Section: Introductionmentioning

confidence: 99%

“…Similar multiple behavioural phenotypes in honeybees are also correlated at the individual level (Page & Erber 2002;Pankiw 2003;Scheiner et al 2004), indicating their evolution as behavioural syndromes (array of correlated behavioural characteristics: Sih et al 2004). Linked sets of behavioural traits may have arisen through adaptation in certain contexts (Amdam et al 2004), but the correlation among behavioural traits may constrain the division of labour in social insects, and behavioural optimization in general (Price & Langen 1992;Sih et al 2004 One of the best-studied examples of behavioural syndromes in insects is the behavioural differentiation among workers of two strains of honeybees that have been bidirectionally selected over multiple generations for different amounts of pollen stored in their nests . Many different aspects of foraging behaviour Waddington et al 1998;Pankiw & Page 1999;Fewell & Page 2000) have changed in concert with seemingly unrelated behavioural phenotypes, such as behavioural maturation (Calderone & Page 1996;Pankiw & Page 2001) and learning behaviour (Scheiner et al 2001a, b).…”

mentioning

confidence: 99%

“…Many different aspects of foraging behaviour Waddington et al 1998;Pankiw & Page 1999;Fewell & Page 2000) have changed in concert with seemingly unrelated behavioural phenotypes, such as behavioural maturation (Calderone & Page 1996;Pankiw & Page 2001) and learning behaviour (Scheiner et al 2001a, b). This suite of behavioural correlations is also reflected in racial differences and in unselected honeybee workers (Pankiw & Page 2000;Pankiw 2003), and thus it constitutes a general behavioural syndrome (Sih et al 2004).In contrast to the amount of work investigating the relations between behavioural phenotypes within honeybee workers, correlations across castes or sexes have not been addressed (but see Giray & Robinson 1996), even though male-female correlations are of general importance to understand the evolution of animal behaviour (Price & Langen 1992;McGlothlin et al 2004). Male honeybees (drones) serve an exclusively reproductive function.…”

mentioning

confidence: 99%

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Male behavioural maturation rate responds to selection on pollen hoarding in honeybees

2006

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Division of labour in social insect colonies relies on behavioural functional differentiation (specialization) of individuals with similar genomes. However, individual behavioural traits do not evolve independently of each other (behavioural syndromes). A prime example is the suite of behavioural differences in honeybee workers that has evolved in response to bidirectional selection on pollen hoarding of honeybee colonies (pollen-hoarding syndrome). More generally, these differences reflect functional differentiation between nectar and pollen foragers. We demonstrate here that this pollen-hoarding syndrome extends to drones. Similar to what has been shown in workers, drones from the high-pollen-hoarding strain had a higher locomotion activity after emergence, and they initiated flight earlier than did males derived from the low-pollen-hoarding strain, with hybrids intermediate. However, these two behavioural traits were unlinked at the individual level. We also found that social environment (the colony) affects the age at which drones initiate flight. The indirect selection responses of male behaviour suggest that male and worker evolution are not independent and may constrain each other's evolution. Furthermore, we identified three distinct peaks in the probability of flight initiation over the course of the experiment and a decreased phenotypic variability in the 'hybrid' males, contrary to quantitative genetic expectations.Social insects owe much of their evolutionary success to the coordinated action of behaviourally specialized members of their colonies (Oster & Wilson 1978; Winston 1987;Hölldobler & Wilson 1990). Division of labour is a hallmark of social evolution (Beshers & Fewell 2001), and among honeybee workers, it is mainly determined by age and genetic effects (Winston 1987). To promote individual specialization, the response thresholds to different task stimuli should vary independently among individuals (Beshers & Fewell 2001). This seems not to be the case: honeybees show well-established behavioural differences among races that extend to multiple behavioural phenotypes, as well as to morphology and life history (Winston 1987). Similar multiple behavioural phenotypes in honeybees are also correlated at the individual level (Page & Erber 2002;Pankiw 2003;Scheiner et al. 2004), indicating their evolution as behavioural syndromes (array of correlated behavioural characteristics: Sih et al. 2004). Linked sets of behavioural traits may have arisen through adaptation in certain contexts (Amdam et al. 2004), but the correlation among behavioural traits may constrain the division of labour in social insects, and behavioural optimization in general (Price & Langen 1992;Sih et al. 2004 One of the best-studied examples of behavioural syndromes in insects is the behavioural differentiation among workers of two strains of honeybees that have been bidirectionally selected over multiple generations for different amounts of pollen stored in their nests . Many different aspects of foraging behaviour Wadd...

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Experimental analysis of character coupling across a complex life cycle: Pigment pattern metamorphosis in the tiger salamander,Ambystoma tigrinum tigrinum

Parichy¹

1998

J. Morphol.

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Developmental relationships among characters are expected to bias patterns of morphological variation at the population level. Studies of character development thus can provide insights into processes of adaptation and the evolutionary diversification of morphologies. Here I use experimental manipulations to test whether larval and adult pigment patterns are coupled across metamorphosis in the tiger salamander, Ambystoma tigrinum tigrinum (Ambystomatidae). Previous investigations showed that the early larval pigment pattern depends on interactions between pigment cells and the lateral line sensory system. In contrast, the results of this study demonstrate that the major features of the adult pigment pattern develop largely independently of both the early larval pattern and the lateral lines. These results suggest that ontogenetic changes that occur across metamorphosis decouple larval and adult pigment patterns and could thereby facilitate independent evolutionary modifications to the patterns during different stages of the life cycle. J. Morphol. 237:53–67, 1998. © 1998 Wiley‐Liss, Inc.

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Evolution of correlated characters

Cited by 165 publications

References 30 publications

Quantitative genetics of juvenile hormone esterase, juvenile hormone binding and general esterase activity in the cricket Gryllus assimilis

Quantitative genetics of juvenile hormone esterase, juvenile hormone binding and general esterase activity in the cricket Gryllus assimilis

Male behavioural maturation rate responds to selection on pollen hoarding in honeybees

Experimental analysis of character coupling across a complex life cycle: Pigment pattern metamorphosis in the tiger salamander,Ambystoma tigrinum tigrinum

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