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Evidence of genetic monogamy in the lemur Indri (Indri indri).
Bonadonna, Giovanna; Torti, Valeria; De Gregorio, Chiara; Valente, Daria; Randrianarison, Rose Marie; Pozzi, Luca; Gamba, Marco; Giacoma, Cristina.
Afiliación
  • Bonadonna G; Department of Life Sciences and Systems Biology, University of Torino, Torino, Italy.
  • Torti V; Department of Life Sciences and Systems Biology, University of Torino, Torino, Italy.
  • De Gregorio C; Department of Life Sciences and Systems Biology, University of Torino, Torino, Italy.
  • Valente D; Department of Life Sciences and Systems Biology, University of Torino, Torino, Italy.
  • Randrianarison RM; Research and Training Division, Group d'Etude et de Recherche sur les Primates de Madagascar (GERP), Antananarivo, Madagascar.
  • Pozzi L; Department of Anthropology, The University of Texas at San Antonio, San Antonio, Texas.
  • Gamba M; Department of Life Sciences and Systems Biology, University of Torino, Torino, Italy.
  • Giacoma C; Department of Life Sciences and Systems Biology, University of Torino, Torino, Italy.
Am J Primatol ; 81(6): e22993, 2019 07.
Article en En | MEDLINE | ID: mdl-31180154
Monogamy is a rare strategy among mammals but relatively common among primates. The study of the evolution of monogamy in mammals and primates is lacking empirical studies that assess the relationship between a pair-living social organization and genetic monogamy. Sexual or genetic monogamy can only be assessed by performing molecular analyses and investigating rates of extra-pair paternity (EPP). Studying the occurrence of EPP can provide valuable insights into reproductive strategies and their adaptive value. The indri is a pair-living primate that lives in stable groups. Their social units are composed of the reproductive pair and up to four more individuals, but extra-pair copulation (EPC) can occur. This raises the question of whether this event may or may not lead to EPP. Here, we investigated whether a pair-living social organization corresponds to genetic monogamy in indris (Indri indri). We analyzed the paternity of 12 offspring from seven pairs using a set of six microsatellite loci on fecal samples (mean number of alleles 11.7 ± 1.8 (mean ± standard deviation). We found that in 92% of cases the genetic profile of the offspring matched the paired male of the group for all the loci considered. In the only case of paternity mismatch, the paternity assignment remained inconclusive. Our results show that I. indri genetic monogamy is the norm and supports the hypothesis that pair-living social organization is associated with low EPP rate. Also, our results are in contrast with the hypothesis of infertility as a reason to engage in EPC for this species.
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Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Apareamiento / Conducta Sexual Animal / Indriidae Límite: Animals Idioma: En Revista: Am J Primatol Año: 2019 Tipo del documento: Article País de afiliación: Italia

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Apareamiento / Conducta Sexual Animal / Indriidae Límite: Animals Idioma: En Revista: Am J Primatol Año: 2019 Tipo del documento: Article País de afiliación: Italia