Extra‐pair paternity in the wood‐feeding cockroach Cryptocercus punctulatus Scudder: Social but not genetic monogamy

Abstract The Eurasian Jackdaw is thought to be archetypically monogamous, but recent tagging research uncovered extra-pair copulations in the species. Here we examined extra-pair paternity (genetic monogamy) in Eurasian jackdaws breeding in the Judean Hills, Israel, at the global edge of the species range, using a set of highly polymorphic molecular microsatellites. We found roughly a sixth of nests sampled showed deviations from monogamy, more than previously found in DNA fingerprinting studies of jackdaws, suggesting a mixed mating strategy in this population. These findings support the trend of extra-pair paternity in avian species, even when social monogamy remains the rule, and highlight the importance of continued study of species throughout their geographical range.

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Extra-pair paternity in the long-tailed finchPoephila acuticauda

PeerJ ◽

10.7717/peerj.1550 ◽

2016 ◽

Vol 4 ◽

pp. e1550 ◽

Cited By ~ 5

Author(s):

Erica P. van Rooij ◽

Lee A. Rollins ◽

Clare E. Holleley ◽

Simon C. Griffith

Keyword(s):

Breeding Season ◽

Breeding System ◽

Molecular Data ◽

Passerine Birds ◽

Genetic Breeding ◽

Extra Pair Paternity ◽

Genetic Monogamy ◽

Pair Bonds ◽

Monogamous Species ◽

Socially Monogamous

Although the majority of passerine birds are socially monogamous, true genetic monogamy is rare, with extra-pair paternity (EPP) occurring in almost 90% of surveyed socially monogamous species. We present the first molecular data on the genetic breeding system of the long-tailed finch,Poephila acuticauda, a grass finch endemic to the tropical northern savannah of Australia. Although the species forms socially monogamous pair bonds during the breeding season, we found that extra-pair males sired 12.8% of 391 offspring, in 25.7% of 101 broods. Our findings provide only the second estimate of extra-pair paternity in the estrildid finch family.

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Genetic monogamy and mate choice in a pair-living primate

Scientific Reports ◽

10.1038/s41598-020-77132-9 ◽

2020 ◽

Vol 10 (1) ◽

Author(s):

Sofya Dolotovskaya ◽

Christian Roos ◽

Eckhard W. Heymann

Keyword(s):

Genetic Diversity ◽

Mate Choice ◽

Microsatellite Loci ◽

Inbreeding Avoidance ◽

Peruvian Amazon ◽

Extra Pair Paternity ◽

Genetic Monogamy ◽

Titi Monkeys ◽

Socially Monogamous ◽

Study Population

AbstractIn pair-living mammals, genetic monogamy is extremely rare. One possible reason is that in socially monogamous animals, mate choice can be severely constrained, increasing the risk of inbreeding or pairing with an incompatible or low-quality partner. To escape these constraints, individuals might engage in extra-pair copulations. Alternatively, inbreeding can be avoided by dispersal. However, little is known about the interactions between mating system, mate choice, and dispersal in pair-living mammals. Here we genotyped 41 wild individuals from 14 groups of coppery titi monkeys (Plecturocebus cupreus) in Peruvian Amazon using 18 microsatellite loci. Parentage analyses of 18 young revealed no cases of extra-pair paternity, indicating that the study population is mostly genetically monogamous. We did not find evidence for relatedness- or heterozygosity-based mate choice. Despite the lack of evidence for active inbreeding avoidance via mate choice, mating partners were on average not related. We further found that dispersal was not sex-biased, with both sexes dispersing opportunistically over varying distances. Our findings suggest that even opportunistic dispersal, as long as it is not constrained, can generate sufficient genetic diversity to prevent inbreeding. This, in turn, can render active inbreeding avoidance via mate choice and extra-pair copulations less necessary, helping to maintain genetic monogamy.

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Almost faithful: SNP markers reveal low levels of extra-pair paternity in the Eurasian beavers

10.7287/peerj.preprints.27866 ◽

2019 ◽

Author(s):

Priyank Sharad Nimje ◽

Helga Veronica Tinnesand ◽

Christina Buesching ◽

Mona Sæbø ◽

Helen Senn ◽

...

Keyword(s):

Multiple Paternity ◽

Low Frequency ◽

Mate Guarding ◽

Snp Markers ◽

Social Monogamy ◽

Single Nucleotide ◽

Extra Pair Paternity ◽

Eurasian Beaver ◽

Genetic Monogamy ◽

Mate Change

Mating systems largely affect individual reproductive strategies which further drives evolution. Monogamy, where males and females form exclusive pairs for more than one breeding season, is particularly intriguing in this context, as there are real and potential costs of genetic monogamy to both sexes. However, molecular studies in a variety of species have revealed that social monogamy does not necessarily imply genetic monogamy due to occurrence of extra-pair copulations resulting in extra-pair offspring. Although common in birds, <10% of mammals are monogamous. Here we use single nucleotide polymorphism (SNP) to investigate the genetic mating system of the Eurasian beaver (Castor fiber), a species traditionally considered to be not only socially but also genetically monogamous. We found evidence for low frequency of extra-pair paternity (EPP) and multiple paternity within litter. Only 5.4% young were produced by EPP and only 7% of litter contain at least one extra-pair young. Moreover, we found indications that only pairings of old individuals engaged in EPP. None of these pairs produced more than one litter as a result of EPP and none of the EPP events resulted in mate change. Our findings suggest that EPP in beavers might be the consequence of a lapse in mate guarding ability of old males.

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Almost faithful: SNP markers reveal low levels of extra-pair paternity in the Eurasian beavers

10.7287/peerj.preprints.27866v1 ◽

2019 ◽

Author(s):

Priyank Sharad Nimje ◽

Helga Veronica Tinnesand ◽

Christina Buesching ◽

Mona Sæbø ◽

Helen Senn ◽

...

Keyword(s):

Multiple Paternity ◽

Low Frequency ◽

Mate Guarding ◽

Snp Markers ◽

Social Monogamy ◽

Single Nucleotide ◽

Extra Pair Paternity ◽

Eurasian Beaver ◽

Genetic Monogamy ◽

Mate Change

Mating systems largely affect individual reproductive strategies which further drives evolution. Monogamy, where males and females form exclusive pairs for more than one breeding season, is particularly intriguing in this context, as there are real and potential costs of genetic monogamy to both sexes. However, molecular studies in a variety of species have revealed that social monogamy does not necessarily imply genetic monogamy due to occurrence of extra-pair copulations resulting in extra-pair offspring. Although common in birds, <10% of mammals are monogamous. Here we use single nucleotide polymorphism (SNP) to investigate the genetic mating system of the Eurasian beaver (Castor fiber), a species traditionally considered to be not only socially but also genetically monogamous. We found evidence for low frequency of extra-pair paternity (EPP) and multiple paternity within litter. Only 5.4% young were produced by EPP and only 7% of litter contain at least one extra-pair young. Moreover, we found indications that only pairings of old individuals engaged in EPP. None of these pairs produced more than one litter as a result of EPP and none of the EPP events resulted in mate change. Our findings suggest that EPP in beavers might be the consequence of a lapse in mate guarding ability of old males.

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Experimental increase in female mass during the fertile phase leads to enhanced extra-pair paternity in pied flycatchers Ficedula hypoleuca

10.32942/osf.io/qrnkb ◽

2019 ◽

Author(s):

Mireia Plaza ◽

Alejandro Cantarero ◽

Juan Moreno

Keyword(s):

Negative Relationship ◽

Ficedula Hypoleuca ◽

Egg Laying ◽

Female Dominance ◽

Laying Date ◽

Control Group ◽

Wing Loading ◽

Potential Fecundity ◽

Fertile Phase ◽

Extra Pair Paternity

Female mass in most altricial birds reaches its maximum during breeding at egg-laying, which coincides temporally with the fertile phase when extra-pair paternity (EPP) is determined. Higher mass at laying may have two different effects on EPP intensity. On the one hand, it would lead to increased wing loading (body mass/wing area), which may impair flight efficiency and thereby reduce female’s capacity to resist unwanted extra-pair male approaches (sexual conflict hypothesis). On the other hand, it would enhance female condition, favouring her capacity to evade mate-guarding and to search for extra-pair mates (female choice hypothesis). In both cases, higher female mass at laying may lead to enhanced EPP. To test this prediction, we reduced nest building effort by adding a completely constructed nest in an experimental group of female pied flycatchers (Ficedula hypoleuca). Our treatment caused an increase in mass and thereby wing loading and this was translated into a significantly higher EPP in the manipulated group compared with the control group as expected. There was also a significant negative relationship between EPP and laying date and the extent of the white wing patch, an index of female dominance. More body reserves at laying mean not only a higher potential fecundity but a higher level of EPP as well. This interaction had not previously received due attention but should be considered in future studies of avian breeding strategies.

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