Multiple mating in the ant Acromyrmex versicolor : a case of female control

1996 ◽  
Vol 38 (4) ◽  
pp. 219-225 ◽  
Author(s):  
A. K. Reichardt ◽  
D. E. Wheeler
Keyword(s):  
Multiple Mating ◽  
Acromyrmex Versicolor ◽  
Female Control

scholarly journals Implications of multiple mating for offspring relatedness and shoaling behaviour in juvenile guppies

2008 ◽  
Vol 4 (6) ◽  
pp. 623-626 ◽  
Author(s):  
Jonathan P Evans ◽  
Jennifer L Kelley
Keyword(s):  
Social Interactions ◽  
Artificial Insemination ◽  
Social Behaviour ◽  
Poecilia Reticulata ◽  
Multiple Mating ◽  
Potential Cost ◽  
Close Proximity ◽  
Shoaling Behaviour

Polyandry (female multiple mating) can confer important benefits to females, but few studies have considered its potential costs. One such cost may arise through differences in the relatedness of offspring born to females with different mating histories; offspring born to monandrous females are always full siblings, while those produced by polyandrous females may be full or half siblings. These differences may have important consequences for social interactions among offspring. We used artificial insemination in the guppy ( Poecilia reticulata ), a promiscuous live-bearing fish, to evaluate shoaling behaviour in polyandrous and monandrous broods. We combined this information with known parentage data for the polyandrous broods to determine whether sibling relatedness influenced offspring shoaling behaviour. While we detected no effect of mating treatment (polyandry/monandry) on shoaling behaviour, we found that pairs of full siblings spent significantly more time shoaling (and in close proximity) than pairs of half siblings. This latter finding confirms the ability of newborn guppies to distinguish brood mates on the basis of kinship, but also suggests an important and hitherto unrealized potential cost of polyandry: a reduction in within-brood relatedness with potentially important implications for offspring social behaviour.

scholarly journals The costs and benefits of multiple mating in a mostly monandrous wasp

Evolution ◽  
2015 ◽  
Vol 69 (4) ◽  
pp. 939-949 ◽  
Author(s):  
Rebecca A. Boulton ◽  
David M. Shuker
Keyword(s):  
Multiple Mating ◽  
Costs And Benefits

The origin of multiple mating types in mushrooms

1993 ◽  
Vol 104 (2) ◽  
pp. 227-230
Author(s):  
U. Kues ◽  
L.A. Casselton
Keyword(s):  
Mating Type ◽  
Multiple Mating ◽  
Mating Types ◽  
Mating Partner ◽  
Binucleate Cells ◽  
Large Numbers ◽  
Mating Type Genes ◽  
And Function ◽  
Developmental Switch ◽  
Sterile Mycelium

Having multiple mating types greatly improves the chances of meeting a compatible mating partner, particularly in an organism like the mushroom that has no sexual differentiation and no mechanism for signalling to a likely mate. Having several thousands of mating types, as some mushrooms do, is, however, remarkable - and even more remarkable is the fact that individuals only recognise that they have met a compatible mate after their cells have fused. How are such large numbers of mating types generated and what is the nature of the intracellular interaction that distinguishes self from non- self? Answers to these fascinating questions come from cloning some of the mating type genes of the ink cap mushroom Coprinus cinereus. A successful mating in Coprinus triggers a major switch in cell type, the conversion of a sterile mycelium with uninucleate cells (monokaryon) to a fertile mycelium with binucleate cells (dikaryon) which differentiates the characteristic fruit bodies. The mating type genes that regulate this developmental switch map to two multiallelic loci designated A and B and these must both carry different alleles for full mating compatibility. A and B independently regulate different steps in the developmental switch, making it possible to study just one component of the system and work in our laboratory has concentrated on understanding the structure and function of the A genes. It is estimated that some 160 different A mating types exist in nature, any two of which can together trigger the A-regulated part of sexual development. The first clue to how such large numbers are generated came from classical genetic analysis, which identified two functionally redundant A loci, (alpha) and beta. Functional redundancy is, indeed, the key to multiple A mating types and, as seen in Fig.1, molecular cloning has identified many more genes than was possible by recombination analysis.

scholarly journals Intentional multiple mating by females in a species where sneak fertilization circumvents female choice for parental males

2018 ◽  
Vol 93 (2) ◽  
pp. 324-333 ◽  
Author(s):  
Kelly A. Stiver ◽  
Holly K. Kindsvater ◽  
Natascia Tamburello ◽  
Kellie L. Heckman ◽  
Joanne Klein ◽  
...  
Keyword(s):  
Female Choice ◽  
Multiple Mating
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