Changes in body melanisation and desiccation resistance in highland vs. lowland populations of D. melanogaster

Parkash, Ravi; Rajpurohit, Subhash; Ramniwas, Seema

doi:10.1016/j.jinsphys.2008.04.008

Cited by 116 publications

(153 citation statements)

References 23 publications

Supporting

Mentioning

135

Contrasting

Order By: Relevance

“…Because the correlation is in the opposite direction, natural selection on these traits is likely to fluctuate depending on the conditions and may act in a balanced manner. Our results, together with the universally observed polymorphisms in pigmentation traits (David et al, 1985;Munjal et al, 1997;Pool and Aquadro, 2007;Parkash et al, 2008aParkash et al, , b, 2009Parkash et al, , 2010Rebeiz et al, 2009;Takahashi and Takano-Shimizu, 2011;Telonis-Scott et al, 2011;Bastide et al, 2013Bastide et al, , 2014Dembeck et al, 2015), support this view.…”

Section: Discussionsupporting

confidence: 87%

“…Indeed, there are studies suggesting an association between pigmentation and UV resistance (Bastide et al, 2014) or desiccation tolerance (Parkash et al, 2008a(Parkash et al, , b, 2009 Edited by Yoichi Matsuda Ramniwas et al, 2013) within this species. Also, the "thermal budget (melanism) hypothesis" suggests a relationship between body color and thermoregulation (reviewed in Clusella Trullas et al, 2007).…”

Section: Introductionmentioning

confidence: 87%

“…Among many different phenotypic traits, diversity in body color provides a clearly visible example of an ecologically relevant trait. Specifically, pigmentation traits in a model insect, Drosophila melanogaster, exhibit a substantial degree of intraspecific variation (David et al, 1985;Munjal et al, 1997;Pool and Aquadro, 2007;Parkash et al, 2008aParkash et al, , b, 2009Parkash et al, , 2010Rebeiz et al, 2009;Takahashi and Takano-Shimizu, 2011;TelonisScott et al, 2011;Bastide et al, 2013Bastide et al, , 2014Dembeck et al, 2015). Repeatedly observed clines along latitude (David et al, 1985;Munjal et al, 1997;Parkash et al, 2008a;Telonis-Scott et al, 2011;Bastide et al, 2014) and altitude (Pool and Aquadro, 2007;Parkash et al, 2009Parkash et al, , 2010Bastide et al, 2014) indicate that these traits are involved in adaptation to clinal environmental factors.…”

Section: Introductionmentioning

confidence: 99%

“…Specifically, pigmentation traits in a model insect, Drosophila melanogaster, exhibit a substantial degree of intraspecific variation (David et al, 1985;Munjal et al, 1997;Pool and Aquadro, 2007;Parkash et al, 2008aParkash et al, , b, 2009Parkash et al, , 2010Rebeiz et al, 2009;Takahashi and Takano-Shimizu, 2011;TelonisScott et al, 2011;Bastide et al, 2013Bastide et al, , 2014Dembeck et al, 2015). Repeatedly observed clines along latitude (David et al, 1985;Munjal et al, 1997;Parkash et al, 2008a;Telonis-Scott et al, 2011;Bastide et al, 2014) and altitude (Pool and Aquadro, 2007;Parkash et al, 2009Parkash et al, , 2010Bastide et al, 2014) indicate that these traits are involved in adaptation to clinal environmental factors. Furthermore, even within local populations, a considerable degree of variation exists in populations from many regions of the world (Pool and Aquadro, 2007;Parkash et al, 2008b;Rebeiz et al, 2009;Takahashi and TakanoShimizu, 2011;Bastide et al, 2013Bastide et al, , 2014Dembeck et al, 2015;Miyagi et al, 2015), which suggests that these traits are controlled by some balanced forces.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Factors underlying natural variation in body pigmentation of Drosophila melanogaster

et al. 2016

View full text Add to dashboard Cite

Molecular mechanisms underlying standing genetic variation of an ecologically relevant trait such as pigmentation trait variation in a model insect, Drosophila melanogaster, are relevant to our understanding of different kinds of intergenomic interactions. In this study, we focused on the association between body pigmentation and stress resistance, and on genotype-by-environment interaction, both of which are likely to contribute to the persistence of phenotypic variation in a natural population. First, we detected a significant association between pigmentation traits in females and starvation resistance (darker strains were weaker) and a weak association between pigmentation and chill coma recovery time (darker strains showed shorter recovery time) among 20 inbred strains from the Drosophila melanogaster Genetic Reference Panel (DGRP), which originated from a natural population in North America. These associations revealed a complex relationship between body pigmentation and physiological traits that may give rise to balanced selective forces acting on the traits under fluctuating environmental conditions. Second, using four of the DGRP strains, a substantial degree of genotype (strain) × environment (rearing temperature) interaction was detected among expression levels of the genes encoding effector enzymes in the melanin biosynthesis pathway. These interactions can potentially reduce the efficiency of purifying selection on the pigmentation traits over a wide range of temperature conditions. Finally, we discuss possible mechanisms that contribute to the maintenance of the standing pigmentation variation in this species.

show abstract

Section: Discussionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Factors underlying natural variation in body pigmentation of Drosophila melanogaster

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The first report of the trident polymorphism from a natural population was by the pioneers of Drosophila geneticists, Morgan and Bridges (1919), followed by Jacobs (1960Jacobs ( , 1961, and David et al (1985). What is particularly noticeable about the studies on pigmentation variation within this species is that a clinal variation in pigmentation intensity is repeatedly observed along altitude or latitude or both (David et al, 1985;Munjal et al, 1997;Pool and Aquadro, 2007;Parkash et al, 2008aParkash et al, , 2008bParkash et al, , 2009Telonis-Scott et al, 2011). These observations of non-random distribution of the phenotype can be a circumstantial evidence that supports environmental adaptation playing a role in shaping the diverse patterns of body pigmentation.…”

Section: Pigmentation Variation In Drosophilamentioning

confidence: 99%

Pigmentation and behavior: potential association through pleiotropic genes in Drosophila

Takahashi

2013

Genes Genet. Syst.

View full text Add to dashboard Cite

The molecular basis of pigmentation variation within and among Drosophila species is largely attributed to genes in melanin biosynthesis pathway, which involves dopamine metabolism. Most of the genetic changes underlying pigmentation variations reported to date are changes at the expression levels of the structural genes in the pathway. Within D. melanogaster, changes in cis-regulatory regions of a gene, ebony, are responsible for the naturally occurring variation of the body pigmentation intensity. This gene is also known to be expressed in glia, and many visual and behavioral abnormalities of its mutants have been reported. This implies that the gene has pleiotropic functions in the nervous systems. In this review, current knowledge on pigmentation variation and melanin biosynthesis pathway are summarized, with some focus on pleiotropic features of ebony and other genes in the pathway. A potential association between pigmentation and behavior through such pleiotropic genes is discussed in light of cis-regulatory structure and pleiotropic mutations.

show abstract

Immune Responses and Their Potential Role in Insect Outbreaks

Shlichta

Smilanich

2012

Insect Outbreaks Revisited

View full text Add to dashboard Cite

Species References Density-dependent prophylaxis-hosts living at high densities suffer a greater risk of disease and therefore invest more in immunity. M − Larval mortality from NPV declined as density increased. Mythimna separata* Kunimi and Yamada 1990 M + Resistance to granulosis virus increased as density increased. Mythimna separata* Kunimi and Yamada 1990 M − Larvae were most susceptible to infection at high densities. Mamestra brassicae Goulson and Cory 1995 M + Larval transmission of viruses declined as density increased. Lymantria dispar* D'Amico et al. 1996 M + Larger egg masses had higher resistance to NPV. Malacosoma californicum p.* Rothman and Myers 1996 HM, M, PO + Higher densities were more resistant to fungus. Tenebrio moliator Barnes and Siva-Jothy 2000 EN, PO + Immunity measures increased with increasing gregariousness. Spodoptera exempta* Wilson et al. 2001 AB, EN, HM, PO + Increased pathogen resistance under crowded conditions.

show abstract

Changes in body melanisation and desiccation resistance in highland vs. lowland populations of D. melanogaster

Cited by 116 publications

References 23 publications

Factors underlying natural variation in body pigmentation of <i>Drosophila melanogaster</i>

Factors underlying natural variation in body pigmentation of <i>Drosophila melanogaster</i>

Pigmentation and behavior: potential association through pleiotropic genes in <i>Drosophila</i>

Immune Responses and Their Potential Role in Insect Outbreaks

Contact Info

Product

Resources

About