scholarly journals Evolution of a Mate Recognition System after Hybridization between TwoDrosophilaSpecies

1998 ◽  
Vol 151 (6) ◽  
pp. 538-544 ◽  
Author(s):  
Mark W. Blows
Keyword(s):  
Mate Recognition ◽  
Recognition System ◽  
Mate Recognition System

BIOSYSTEMATICS OF THE GENUS EUXOA (LEPIDOPTERA: NOCTUIDAE). XVIH. COMPARATIVE BIOLOGY AND EXPERIMENTAL TAXONOMY OF THE SIBLING SPECIES EUXOA RIDMGSIANA (GRT.) AND EUXOA MAIMES (SM.)

1985 ◽  
Vol 117 (4) ◽  
pp. 481-493 ◽  
Author(s):  
J.R. Byers ◽  
D.L. Struble ◽  
J.D. Lafontaine
Keyword(s):  
Life Cycle ◽  
Reproductive Isolation ◽  
Sibling Species ◽  
Mate Recognition ◽  
Recognition System ◽  
Flight Period ◽  
Interspecific Differences ◽  
Mate Recognition System ◽  
The Difference ◽  
Species Specific

AbstractThe species previously recognized as Euxoa ridingsiana (Grt.) is shown to be composed of a sympatric pair of sibling species, Euxoa ridingsiana (Grt.) and Euxoa maimes (Sm.), which in the laboratory will produce viable F1 hybrids but no F2. Results of F1 sib and backcrosses show that the F1 males are fertile and the F1 females are infertile. In mating-bias tests conducted in laboratory cages, 74% of matings were conspecific and 26% interspecific. Differences in the diel periodicities of mating, which are about 2 h out of phase, may account for the mating bias. The duration of development of E. ridingsiana in the laboratory and its seasonal flight period in the field are about 2 weeks in advance of that of E. maimes. However, there is considerable overlap of the flight periods and, with the tendency of females of both species to mate several times, it is unlikely that the difference in seasonal emergence is enough to effect reproductive isolation. It is evident that, under natural conditions, reproductive isolation can be maintained entirely by species-specific sex pheromones. This mechanism of reproductive isolation is, however, apparently ineffective when moths are confined in cages in the laboratory.Biogeographic considerations suggest that the differences in life-cycle timing and mating periodicities might have been adaptations to adjust development and reproduction to prevailing ancestral environments. If the initial differentiation of the 2 species occurred in isolation and included at least an incipient shift in the pheromonal mate-recognition system, it is possible that upon reestablishment of contact between ancestral populations the differences in life-cycle timing and mating periodicities acting in concert could have effected substantial, albeit incomplete, reproductive isolation. Subsequent selection to reinforce assortative mating to preserve coadapted gene complexes could then have resulted in differentiation of discrete pheromonal systems and attainment of species status.

Signalling components of the house mouse mate recognition system

2009 ◽  
Vol 80 (1) ◽  
pp. 20-27 ◽  
Author(s):  
B. Bímová ◽  
T. Albrecht ◽  
M. Macholán ◽  
J. Piálek
Keyword(s):  
House Mouse ◽  
Mate Recognition ◽  
Recognition System ◽  
Mate Recognition System

The stability of the specific-mate recognition system ofDrosophila melanogaster

1986 ◽  
Vol 16 (3) ◽  
pp. 369-373 ◽  
Author(s):  
D. M. Lambert ◽  
N. R. Henderson
Keyword(s):  
Mate Recognition ◽  
Recognition System ◽  
Mate Recognition System ◽  
Specific Mate Recognition System ◽  
The Stability

scholarly journals Behavioural elements and sensory cues involved in sexual isolation between Drosophila melanogaster strains

2018 ◽  
Vol 5 (5) ◽  
pp. 172060 ◽  
Author(s):  
Micheline Grillet ◽  
Jean-François Ferveur ◽  
Claude Everaerts
Keyword(s):  
Drosophila Melanogaster ◽  
Sexual Isolation ◽  
Mate Recognition ◽  
Recognition System ◽  
Social Contexts ◽  
Body Parts ◽  
Sensory Cues ◽  
Intraspecific Divergence ◽  
Sensory Channel ◽  
Mate Recognition System

Sensory cues exchanged during courtship are crucial for mate choice: if they show intraspecific divergence, this may cause or reinforce sexual isolation between strains, ultimately leading to speciation. There is a strong asymmetric sexual isolation between Drosophila melanogaster females from Zimbabwe (Z) and males from all other populations (M). While M and Z flies of both sexes show different cuticular pheromones, this variation is only partly responsible for the intraspecific isolation effect. Male acoustic signals are also partly involved in sexual isolation. We examined strain-specific courtship behaviour sequences to determine which body parts and sensory appendages may be involved in sexual isolation. Using two strains representative of the Z- and M-types, we manipulated sensory cues and the social context; we then measured the consequence of these manipulations on courtship and copulation. Our data suggest that Z females mated best with males whose sensory characteristics matched those of Z males in both quantity and quality. M females were less choosy and much less influenced by the sensory and social contexts. Differences in emission and reception of sensory signals seen between Z and M flies may lead to the concerted evolution of multiple sensory channel, thereby shaping a population-specific mate recognition system.

Swimming behaviour and photoresponses of the iridescent copepods, Sapphirina gastrica and Sapphirina opalina (Copepoda: Poecilostomatoida)

2004 ◽  
Vol 84 (4) ◽  
pp. 727-731 ◽  
Author(s):  
Jinho Chae ◽  
Shuhei Nishida
Keyword(s):  
Gradual Increase ◽  
Mate Recognition ◽  
Recognition System ◽  
Swimming Behaviour ◽  
Light Sources ◽  
Diel Variation ◽  
Light Conditions ◽  
Positive Phototaxis ◽  
Mate Recognition System ◽  
Species Specific

The swimming behaviour and photoresponses of the iridescent epipelagic copepods, Sapphirina gastrica and S. opalina were investigated in the laboratory. In continuous dark conditions, both species showed no significant diel variation in their swimming activities. When stimulated with light, they exhibited spiral-swimming in which the males showed a significantly higher speed and frequency of turning than the females. Both sexes of S. gastrica and S. opalina showed positive phototaxis at intensities higher than 0·05×1014 quanta  cm−2 s−1 for light sources of 430 nm and 580 nm. Sapphirina gastrica showed increased locomotion over a broad range of wavelengths from 430 nm to 580 nm, while S. opalina showed a gradual increase of activity with decreasing wavelength, with the highest value at 430 nm. The photoresponses of these two species suggest that light conditions play an important role in their daytime ascent and in determining the depth distributions that were observed in our previous study. It is suggested that the iridescence and fast spiral-swimming of males, and the species-specific photoresponses of both sexes constitute a putative mate recognition system in the open ocean.

scholarly journals Mapping of genetic loci that change pheromone discrimination in Drosophila males

2002 ◽  
Vol 79 (2) ◽  
pp. 149-159 ◽  
Author(s):  
CONOR McMAHON ◽  
GILLES SUREAU ◽  
JEAN-FRANÇOIS FERVEUR
Keyword(s):  
Meiotic Recombination ◽  
Mate Recognition ◽  
Recognition System ◽  
Sexual Partners ◽  
Enhancer Trap ◽  
Chromosome 3 ◽  
Natural Polymorphism ◽  
Mate Recognition System ◽  
Specific Mate Recognition System ◽  
Genetically Manipulated

Reproduction in individual animals of sexual species depends largely upon their ability to detect and distinguish specific signal(s) among those produced by various potential sexual partners. In Drosophila melanogaster males, there is a natural polymorphism for discrimination of female and male principal pheromones that segregates with chromosome 3. We have mapped two loci on chromosome 3 that change sex-pheromone discrimination in males. We successively exploited meiotic recombination, deficiencies and enhancer-trap strains; excision of the transposon in two selected enhancer-trap strains clearly reverted the discrimination phenotype. These results indicate that pheromonal discrimination is a character that can be genetically manipulated, and provide further insights into the evolution of the specific mate recognition system.

Laboratory-induced changes in the mate recognition system ofDrosophila pseudoobscura

1986 ◽  
Vol 16 (2) ◽  
pp. 285-294 ◽  
Author(s):  
C. D. Millar ◽  
D. M. Lambert
Keyword(s):  
Mate Recognition ◽  
Recognition System ◽  
Mate Recognition System ◽  
Induced Changes

Postcrania and the specific mate recognition system

1993 ◽  
Vol 8 (4) ◽  
pp. 281-289 ◽  
Author(s):  
B. M. F. Galdikas ◽  
J. B. Duffy ◽  
H. Odwak ◽  
C. M. Purss ◽  
P. Vasey
Keyword(s):  
Mate Recognition ◽  
Recognition System ◽  
Mate Recognition System ◽  
Specific Mate Recognition System
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