LOCAL ADAPTATION MAINTAINS CLINAL VARIATION IN MELANIN-BASED COLORATION OF EUROPEAN BARN OWLS (<i>TYTO ALBA</i>)

Antoniazza, Sylvain; Burri, Reto; Fumagalli, Luca; Goudet, Jérôme; Roulin, Alexandre

doi:10.1111/j.1558-5646.2010.00969.x

Cited by 105 publications

(221 citation statements)

References 74 publications

(105 reference statements)

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“…(eg Antoniazza et al, 2010;Karell et al, 2011). Black tail band width of adults and rump gray color of fledglings showed a significant heritability in both males and females (h 2 ranging from 0.09 to 0.84).…”

Section: Discussionmentioning

confidence: 99%

Multivariate heredity of melanin-based coloration, body mass and immunity

Vergara

et al. 2013

Heredity

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The genetic covariation among different traits may cause the appearance of correlated response to selection on multivariate phenotypes. Genes responsible for the expression of melanin-based color traits are also involved in other important physiological functions such as immunity and metabolism by pleiotropy, suggesting the possibility of multivariate evolution. However, little is known about the relationship between melanin coloration and these functions at the additive genetic level in wild vertebrates. From a multivariate perspective, we simultaneously explored inheritance and selection of melanin coloration, body mass and phytohemagglutinin (PHA)-mediated immune response by using long-term data over an 18-year period collected in a wild population of the common kestrel Falco tinnunculus. Pedigree-based quantitative genetic analyses showed negative genetic covariance between melanin-based coloration and body mass in male adults and positive genetic covariance between body mass and PHA-mediated immune response in fledglings as predicted by pleiotropic effects of melanocortin receptor activity. Multiple selection analyses showed an increased fitness in male adults with intermediate phenotypic values for melanin color and body mass. In male fledglings, there was evidence for a disruptive selection on rump gray color, but a stabilizing selection on PHA-mediated immune response. Our results provide an insight into the evolution of multivariate traits genetically related with melanin-based coloration. The differences in multivariate inheritance and selection between male and female kestrels might have resulted in sexual dimorphism in size and color. When pleiotropic effects are present, coloration can evolve through a complex pathway involving correlated response to selection on multivariate traits.

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Section: Discussionmentioning

confidence: 99%

Multivariate heredity of melanin-based coloration, body mass and immunity

Vergara

et al. 2013

Heredity

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“…For example, there is a 10-20 km wide cline in flower color in the bush Mimulus (Streisfeld and Kohn 2005), and steep clines in coat color in both the rock pocket mouse (Hoekstra et al 2004) and the oldfield mouse (Mullen and Hoekstra 2008). As with many similar clines that have been studied (McKay et al 2001;Storz 2002;Storz and Dubach 2004;Hall et al 2007;Antoniazza et al 2010;Santure et al 2010), these three clines have been hypothesized to be due to local adaptation to variation in biotic or abiotic environmental differences, specifically, to optimize pollination or predator crypsis, respectively. There has also been extensive research investigating clines resulting from hybridization between species (Barton and Hewitt 1985), but this work focuses on variation between species rather than within species (e.g., Marchant et al 1988;Sperling and Spence 1991;Bert and Arnold 1995;Bridle et al 2001;Ruegg 2008;Ouanes et al 2011).…”

Section: Selection For Flower-color Divergencementioning

confidence: 99%

Molecular Signatures of Selection on Reproductive Character Displacement of Flower Color In phlox Drummondii

2011

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“…In partial Mantel tests I set genetic distance to be a covariate in order to look at associations between phenotypic and geographic differences, while attempting to control for neutral genetic divergence (IV). This way, I was able to take neutral genetic differentiation into account to examine the possible influence of selection on warning signal differences more clearly (Antoniazza et al 2010, Kawakami et al 2011). …”

Section: Microsatellite Marker Amplification (I III Iv)mentioning

confidence: 99%

Influences of geographic differentiation in the forewing warning signal of the wood tiger moth in Alaska

Hegna

Mappes

2014

Evol Ecol

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Geographic Variation in the WarningSignals of the Wood Tiger Moth (Parasemia plantaginis; Arctiidae)Esitetään Jyväskylän yliopiston matemaattis-luonnontieteellisen tiedekunnan suostumuksella julkisesti tarkastettavaksi yliopiston Ylistönrinteellä, salissa YAA303 marraskuun 8. päivänä 2013 kello 12.Academic dissertation to be publicly discussed, Warning signals are not expected to be diverse because they are under stabilizing selection. This dissertation aims to study historic and contemporary selection mechanisms underlying the geographic warning signal diversity in the wood tiger moth (Parasemia plantaginis). In the first study, I explored the variation in hindwing warning color frequencies across the distribution of P. plantaginis and the phylogeography of the species. Males have polymorphic hindwing color (yellow or white) across much of their distribution but turn reddish in the Caucasus and mostly white in Japan, which coincide with mitogenetic divergence. Females vary continuously in hindwing warning color between yellow and red, becoming yellow east of the Ural mountain range, but does not correspond to mitogenetic divergence. Post-glacial isolation may be one contributing factor to the genetic divergence and the hindwing warning signal differences in the Caucasus region. In the second study, I found that thermoregulation benefits of melanin can trade-off with a larger more effective warning signal, which contributes to variation in melanization within Europe. In the third study, I found that forewing patterns function as warning signals and that generalization by predators might play an important role in warning signal diversity along with frequency dependent selection. In the fourth chapter, I found three populations in Japan differing in warning signal traits with some gene flow suggesting both selection and isolation may be underlying causes. Overall, my results suggest that historical and abiotic factors contribute to the observed warning signal diversity in P. plantaginis, rather than predation alone. This adds to our understanding of how historical factors along with environmental heterogeneity in biotic and abiotic factors can promote warning signal diversity. My results highlight the need to take an integrated approach to studying geographic diversity in warning signals.

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LOCAL ADAPTATION MAINTAINS CLINAL VARIATION IN MELANIN-BASED COLORATION OF EUROPEAN BARN OWLS (TYTO ALBA)

Cited by 105 publications

References 74 publications

Multivariate heredity of melanin-based coloration, body mass and immunity

Multivariate heredity of melanin-based coloration, body mass and immunity

Molecular Signatures of Selection on Reproductive Character Displacement of Flower Color In phlox Drummondii

Influences of geographic differentiation in the forewing warning signal of the wood tiger moth in Alaska

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