scholarly journals The nucleotide changes governing cuticular hydrocarbon variation and their evolution in Drosophila melanogaster

2001 ◽  
Vol 98 (7) ◽  
pp. 3920-3925 ◽  
Author(s):  
A. Takahashi ◽  
S.-C. Tsaur ◽  
J. A. Coyne ◽  
C.-I. Wu
Keyword(s):  
Drosophila Melanogaster ◽  
Cuticular Hydrocarbon

scholarly journals Cuticular Hydrocarbon Content that Affects Male Mate Preference of Drosophila melanogaster from West Africa

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Aya Takahashi ◽  
Nao Fujiwara-Tsujii ◽  
Ryohei Yamaoka ◽  
Masanobu Itoh ◽  
Mamiko Ozaki ◽  
...  
Keyword(s):  
Drosophila Melanogaster ◽  
Low Frequency ◽  
Cuticular Hydrocarbon ◽  
Inhibitory Effect ◽  
Incipient Speciation ◽  
Transfer Experiment ◽  
Premating Isolation ◽  
Potential Factor ◽  
Male Mate ◽  
Different Strains

Intraspecific variation in mating signals and preferences can be a potential source of incipient speciation. Variable crossability between Drosophila melanogaster and D. simulans among different strains suggested the abundance of such variations. A particular focus on one combination of D. melanogaster strains, TW1(G23) and Mel6(G59), that showed different crossabilities to D. simulans, revealed that the mating between females from the former and males from the latter occurs at low frequency. The cuticular hydrocarbon transfer experiment indicated that cuticular hydrocarbons of TW1 females have an inhibitory effect on courtship by Mel6 males. A candidate component, a C25 diene, was inferred from the gas chromatography analyses. The intensity of male refusal of TW1 females was variable among different strains of D. melanogaster, which suggested the presence of variation in sensitivity to different chemicals on the cuticle. Such variation could be a potential factor for the establishment of premating isolation under some conditions.

scholarly journals Pleiotropic Effects of ebony and tan on Pigmentation and Cuticular Hydrocarbon Composition in Drosophila melanogaster

2019 ◽  
Vol 10 ◽  
Author(s):  
Jonathan H. Massey ◽  
Noriyoshi Akiyama ◽  
Tanja Bien ◽  
Klaus Dreisewerd ◽  
Patricia J. Wittkopp ◽  
...  
Keyword(s):  
Drosophila Melanogaster ◽  
Cuticular Hydrocarbon ◽  
Hydrocarbon Composition ◽  
Pleiotropic Effects

scholarly journals Pure species discriminate against hybrids in the Drosophila melanogaster species subgroup

2020 ◽  
Author(s):  
Antonio Serrato-Capuchina ◽  
Timothy D. Schwochert ◽  
Stephania Zhang ◽  
Baylee Roy ◽  
David Peede ◽  
...  
Keyword(s):  
Drosophila Melanogaster ◽  
Gene Flow ◽  
Parental Species ◽  
Cuticular Hydrocarbon ◽  
F1 Hybrids ◽  
Sexual Attractiveness ◽  
Pure Species ◽  
Species Pairs ◽  
Fertile Hybrids ◽  
Drosophila Melanogaster Species Subgroup

ABSTRACTIntrogression, the exchange of alleles between species, is a common event in nature. This transfer of alleles between species must happen through fertile hybrids. Characterizing the traits that cause defects in hybrids illuminate how and when gene flow is expected to occur. Inviability and sterility are extreme examples of fitness reductions but are not the only type of defects in hybrids. Some traits specific to hybrids are more subtle but are important to determine their fitness. In this report, we study whether F1 hybrids between two species pairs of Drosophila are as attractive as the parental species. We find that in both species pairs, the sexual attractiveness of the F1 hybrids is reduced and that pure species discriminate strongly against them. We also find that the cuticular hydrocarbon (CHC) profile of the hybrids is intermediate between the parental species. Perfuming experiments show that modifying the CHC profile of the hybrids to resemble pure species improves their chances of mating. Our results show that behavioral discrimination against hybrids might be an important component of the persistence of species that can hybridize.

scholarly journals Genetic architecture of natural variation in cuticular hydrocarbon composition in Drosophila melanogaster

eLife ◽  
2015 ◽  
Vol 4 ◽  
Author(s):  
Lauren M Dembeck ◽  
Katalin Böröczky ◽  
Wen Huang ◽  
Coby Schal ◽  
Robert R H Anholt ◽  
...  
Keyword(s):  
Drosophila Melanogaster ◽  
Social Interactions ◽  
Individual Variation ◽  
Genetic Architecture ◽  
Natural Variation ◽  
Genetic Basis ◽  
Acid Metabolism ◽  
Cuticular Hydrocarbon ◽  
Principal Component ◽  
Hydrocarbon Composition

Insect cuticular hydrocarbons (CHCs) prevent desiccation and serve as chemical signals that mediate social interactions. Drosophila melanogaster CHCs have been studied extensively, but the genetic basis for individual variation in CHC composition is largely unknown. We quantified variation in CHC profiles in the D. melanogaster Genetic Reference Panel (DGRP) and identified novel CHCs. We used principal component (PC) analysis to extract PCs that explain the majority of CHC variation and identified polymorphisms in or near 305 and 173 genes in females and males, respectively, associated with variation in these PCs. In addition, 17 DGRP lines contain the functional Desat2 allele characteristic of African and Caribbean D. melanogaster females (more 5,9-C27:2 and less 7,11-C27:2, female sex pheromone isomers). Disruption of expression of 24 candidate genes affected CHC composition in at least one sex. These genes are associated with fatty acid metabolism and represent mechanistic targets for individual variation in CHC composition.

scholarly journals Genetics of a Difference in Male Cuticular Hydrocarbons Between Two Sibling Species, Drosophila simulans and D. sechellia

Genetics ◽  
1996 ◽  
Vol 143 (4) ◽  
pp. 1689-1698 ◽  
Author(s):  
Jerry A Coyne
Keyword(s):  
Drosophila Melanogaster ◽  
Species Difference ◽  
Cuticular Hydrocarbon ◽  
Sexual Isolation ◽  
Close Relative ◽  
The Novel ◽  
Island Endemic ◽  
The Third ◽  
Hydrocarbon Profile ◽  
The Right

Abstract In seven of the eight species of the Drosophila melanogaster group, the predominant cuticular hydrocarbon of males is Ftricosene, but in the island endemic species D. sechellia it is 6-tricosene. The phylogeny of the group implies that the novel hydrocarbon profile of D. sechellia is a derived character. Genetic analysis of hybrids between D. sechellia and its close relative D. simulans show that each of the five major chromosome arms carries at least one gene affecting the ratio of the two tricosene isomers, with the right arm of the third chromosome having the largest effect. The species difference in this character is therefore polygenic with the effects of the different chromosome arms generally additive, although there is some epistasis among third-chromosome genes. Observations of courtship by males who have been coated with foreign hydrocarbons suggest that a male's hydrocarbon profile may slightly affect the degree of sexual isolation in one of the reciprocal hybridizations between these species, but that this role is small compared to that played by hydrocarbon differences between females.

scholarly journals A gene responsible for a cuticular hydrocarbon polymorphism in Drosophila melanogaster

1999 ◽  
Vol 73 (3) ◽  
pp. 189-203 ◽  
Author(s):  
JERRY A. COYNE ◽  
CLAUDE WICKER-THOMAS ◽  
JEAN-MARC JALLON
Keyword(s):  
Drosophila Melanogaster ◽  
Mating Behaviour ◽  
Polytene Chromosomes ◽  
Cuticular Hydrocarbon ◽  
Sexual Isolation ◽  
Detectable Effect ◽  
Desaturase Gene ◽  
The Difference ◽  
The Right

Drosophila melanogaster is polymorphic for the major cuticular hydrocarbon of females. In most populations this hydrocarbon is 7,11-heptacosadiene, but females from Africa and the Caribbean usually possess low levels of 7,11-heptacosadiene and high quantities of its position isomer 5,9-heptacosadiene. Genetic analysis shows that the difference between these two morphs is due to variation at a single segregating factor located on the right arm of chromosome 3 near map position 51·5 and cytological position 87C–D. This is precisely the position of a desaturase gene previously sequenced using primers derived from yeast and mouse, and localized by in situ hybridization to the polytene chromosomes of D. melanogaster. Alleles of this desaturase gene may therefore be responsible for producing the two hydrocarbon morphs. Mating tests following the transfer of these isomers between females of the two morphs show that, in contrast to previous studies, the hydrocarbon profiles have no detectable effect on mating behaviour or sexual isolation.

Sign in / Sign up

Export Citation Format

Share Document