Insect melanism: the molecules matter

True, John

doi:10.1016/j.tree.2003.09.006

Cited by 408 publications

(492 citation statements)

References 61 publications

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“…In insects, associations with pigmentation have been observed for behavior, immunity, life-history, physiological, and developmental traits. The following sections provide a sampling of these pleiotropic effects, with a focus on Drosophila melanogenesis, which offers the most unequivocal evidence of pleiotropy and the most complete understanding of the molecular mechanisms underlying it (see insightful review by John True [8]). …”

Section: Pigmentation and Pleiotropymentioning

confidence: 99%

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Development and evolution of insect pigmentation: Genetic mechanisms and the potential consequences of pleiotropy

Wittkopp

Beldade

2009

Seminars in Cell & Developmental Biology

298

291

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a b s t r a c tInsect pigmentation is a premier model system in evolutionary and developmental biology. It has been at the heart of classical studies as well as recent breakthroughs. In insects, pigments are produced by epidermal cells through a developmental process that includes pigment patterning and synthesis. Many aspects of this process also impact other phenotypes, including behavior and immunity. This review discusses recent work on the development and evolution of insect pigmentation, with a focus on pleiotropy and its effects on color pattern diversification.

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Section: Pigmentation and Pleiotropymentioning

confidence: 99%

“…intraspecific recognition and mate choice) or different species (e.g. mimicry, aposematism, deflection, and camouflage used to avoid predation), and in physiological processes such as thermoregulation, photo-protection, and desiccation resistance (examples in [8]). …”

Section: Introductionmentioning

confidence: 99%

Development and evolution of insect pigmentation: Genetic mechanisms and the potential consequences of pleiotropy

Wittkopp

Beldade

2009

Seminars in Cell & Developmental Biology

298

291

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“…Studies of animal coloration have laid important groundwork for studying natural selection (Wallace 1879, Poulton 1890, Cott 1940, Endler 1980, Majerus 1998, True 2003, Gray & McKinnon 2007, Cook et al 2012. Coloration is usually closely tied to fitness because it plays important roles in mate choice (Graham et al 1980, Endler & Houde 1995, Summers et al 1999, Maan et al 2004, Maan & Cummings 2008, Estrada & Jiggins 2008, thermoregulation (Tsuji et al 1986, Guppy 1986b, Davis et al 2012, and protection from predators (Wallace 1879, Endler 1983.…”

Section: Biological Significance Of Colorationmentioning

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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“…Thus, pigmentation is a significant contributor to fitness. 1 In order to understand how complex traits such as pigmentation evolve, we must first identify the genetic variants underlying phenotypic variation.…”

Section: Introductionmentioning

confidence: 99%

“…1). 1,24,25,17 However, this is only a small fraction of the 40C genomic regions/ genes known to affect pigmentation from the catalog of mutant phenotypes previously reported. 12,17,18 Furthermore, genes outside of the pigment biosynthesis pathway may also contribute to natural variation in body coloration.…”

Section: Introductionmentioning

confidence: 99%

Genetic basis of natural variation in body pigmentation inDrosophila melanogaster

Dembeck

Huang

Carbone

et al. 2015

Fly

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Insect melanism: the molecules matter

Cited by 408 publications

References 61 publications

Development and evolution of insect pigmentation: Genetic mechanisms and the potential consequences of pleiotropy

Development and evolution of insect pigmentation: Genetic mechanisms and the potential consequences of pleiotropy

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

Genetic basis of natural variation in body pigmentation inDrosophila melanogaster

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