Sexual activity and reproduction delay ageing in a mammal

Dammann, Philip; Burda, Hynek

doi:10.1016/j.cub.2006.02.012

Cited by 86 publications

(91 citation statements)

References 6 publications

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“…Using, e.g. microarray technology, Fukomys will undoubtedly be instrumental in the exploration of differential ageing patterns (Dammann and Burda 2006). Exemplatory at the organismal level are studies which have explored how morphometrical variation maps on phylogenetic trees.…”

Section: Prospects (For Phylogenetic Studies and Beyond)mentioning

confidence: 99%

African Mole-rats (Bathyergidae): A Complex Radiation in Tropical Soils

Daele

Faulkes

Verheyen

et al. 2007

Subterranean Rodents

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Section: Prospects (For Phylogenetic Studies and Beyond)mentioning

confidence: 99%

African Mole-rats (Bathyergidae): A Complex Radiation in Tropical Soils

Daele

Faulkes

Verheyen

et al. 2007

Subterranean Rodents

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“…Hazell et al, 2000;Greeff and Bennett, 2000;Burland et al, 2002Burland et al, , 2004Barnett et al, 2003;Ganem and Bennett, 2004). It may be expected that, in addition to the confamiliar naked molerat (Heterocephalus glaber), this group of African mole-rats will be of particular interest for gerontological research, taking into account longevity quotients similar to those of humans (Buffenstein, 2005;Dammann and Burda, 2006) combined with the differential levels of chromosomal and mitochondrial DNA sequence divergence, which is emphasized by the sequences available to date (Faulkes et al, 1997Ingram et al, 2004; this paper).…”

mentioning

confidence: 93%

“…Recently, several research groups have succeeded in maintaining and breeding the animals in captivity, which will facilitate research in many different aspects of the biology of these mammals, including genetics, chromosomal evolution, evolution of sociality, ethology, biogeography, morphology, ecophysiology and sensory biology (e.g. Jarvis and Bennett, 1993;Bruckmann and Burda, 1997;Jarvis et al, 1998;Spinks et al, 2000a,b;Faulkes and Bennett, 2001;Nemec et al, 2001;Faulkes et al, 2004;Van Daele et al, 2004;Janse Van Rensburg et al, 2004;Scantlebury et al, 2006;Dammann and Burda, 2006). Furthermore, Fukomys is the subject of an increasing number of studies that investigate the mole-rats' behaviour and ecology (e.g.…”

mentioning

confidence: 99%

Cytochrome b sequence analysis reveals differential molecular evolution in African mole-rats of the chromosomally hyperdiverse genus Fukomys (Bathyergidae, Rodentia) from the Zambezian region

Daele

Verheyen

Brunain

et al. 2007

Molecular Phylogenetics and Evolution

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African mole-rats (Bathyergidae, Rodentia) of the (eu)social genus Fukomys are one of the most speciose mammal genera endemic to Sub-Saharan Africa. Fukomys distributed in the Zambezian phytochorion is characterized by extreme chromosomal variation (2n = 40-78). We inferred a molecular phylogeny of Zambezian Fukomys to resolve the interrelationships and the evolutionary history of the known chromosomal races. We sequenced the entire cytochrome b gene (1140 bp) for a total of 66 specimens representing 18 karyotypical races from Zambia. An additional 31 sequences were retrieved from GenBank including data on all other chromosomal races. The haplotypes belonging to a small chromosomal race from Salujinga cluster with the Fukomys mechowii (Giant mole-rat) haplotypes. Differential degrees of chromosomal variation are observed among the major mole-rat clades, which is most pertinent when comparing the central Zambezian Fukomys micklemi and the northern Zambezian Fukomys whytei clades. The karyotypically hyper-diverse (12 known chromosomal races) Fukomys micklemi clade shows low levels of cytochrome b sequence divergence. Within the F. whytei clade we find a more conservative pattern of chromosomal diversification (three known chromosomal races) while the levels of sequence divergence are much higher then in the F. micklemi clade. Our results suggest that chromosomal changes may drive phyletic divergence and, eventually, speciation. The observed cladogenetic events during the Plio-Pleistocene within the F. mechowii, F. whytei, F. damarensis and F. micklemi clades appear to coincide with climatically mediated speciation bursts in other savannah dwelling mammals, including hominids. Based on the molecular data presented, combined with morphological and chromosomal data, the taxonomic implication seems to be that Fukomys may contain several (undescribed) cryptic species.

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“…years whereas the mean lifespan of non-reproductive females is 4.56 ± 0.19 S.E. years in captivity (Dammann et al 2011); mean survival of reproductive female Ansell's mole-rats is almost twice that of non-breeding females (Dammann & Burda 2006). Naked mole rats (Heterocephalus glaber) exhibit no difference in maximum lifespan between breeding and nonbreeding females in captivity (Sherman & Jarvis 2002); however, according to Braude in a personal communication, breeding females can live at least four times longer than non-breeding individuals in the wild (it is unclear whether the non-breeders referred to in this study include male cohorts; Buffenstein 2008).…”

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confidence: 96%

The long-lived queen: reproduction and longevity in female eusocial Damaraland mole-rats (Fukomys damarensis)

2013

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The inverse relationship between reproduction and lifespan is one of the main concepts of life history theory. This association has been observed in most taxa, although exceptions have been found in which a breeding female outlives her non-reproductive cohorts. This relationship is well known in social insects, and it has recently come to light that reproductive females of certain social mole-rat species also exhibit extended lifespans relative to non-breeders. We analysed mark-recapture data over 13 years in 12 colonies of Damaraland mole-rats (Fukomys damarensis) to assess if colony queens lived longer than non-reproductive adult females. Queens were recaptured up to 8.5 years after initial capture (X = 6.2 years); significantly longer than non-reproductive females (X = 1.3 years), suggesting that a colony queen lives longer than her non-reproductive subordinates. This difference may be attributed to both physiological and social factors which may relax reproductive costs in queens.

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Sexual activity and reproduction delay ageing in a mammal

Cited by 86 publications

References 6 publications

African Mole-rats (Bathyergidae): A Complex Radiation in Tropical Soils

African Mole-rats (Bathyergidae): A Complex Radiation in Tropical Soils

Cytochrome b sequence analysis reveals differential molecular evolution in African mole-rats of the chromosomally hyperdiverse genus Fukomys (Bathyergidae, Rodentia) from the Zambezian region

The long-lived queen: reproduction and longevity in female eusocial Damaraland mole-rats (Fukomys damarensis)

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