Dual phylogenetic origins of<scp>N</scp>igerian lions (<i>Panthera leo</i>)

Tende, Talatu; Bensch, Staffan; Ottosson, Ulf; Hansson, Bengt

doi:10.1002/ece3.1116

Cited by 5 publications

(2 citation statements)

References 41 publications

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“…Although nuclear diversity has decreased significantly, mtDNA diversity has remained constant over time ( table 1 ). mtDNA is matrilineally inherited, and localized studies show that there is little or no female-mediated gene flow between subpopulations across Africa ( Tende et al. 2014a ; Curry et al.…”

Section: Discussionmentioning

confidence: 99%

Spatiotemporal Genetic Diversity of Lions Reveals the Influence of Habitat Fragmentation across Africa

Curry

Davis

Bertola

et al. 2020

Molecular Biology and Evolution

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Direct comparisons between historical and contemporary populations allow for detecting changes in genetic diversity through time and assessment of the impact of habitat fragmentation. Here, we determined the genetic architecture of both historical and modern lions to document changes in genetic diversity over the last century. We surveyed microsatellite and mitochondrial genome variation from 143 high-quality museum specimens of known provenance, allowing us to directly compare this information with data from several recently published nuclear and mitochondrial studies. Our results provide evidence for male-mediated gene flow and recent isolation of local subpopulations, likely due to habitat fragmentation. Nuclear markers showed a significant decrease in genetic diversity from the historical (HE=0.833) to the modern (HE=0.796) populations, while mitochondrial genetic diversity was maintained (Hd = 0.98 for both). While the historical population appears to have been panmictic based on nDNA data, hierarchical structure analysis identified four tiers of genetic structure in modern populations and was able to detect most sampling locations. Mitogenome analyses identified 4 clusters: Southern, Mixed, Eastern, and Western; and were consistent between modern and historically sampled haplotypes. Within the last century, habitat fragmentation caused lion subpopulations to become more geographically isolated as human expansion changed the African landscape. This resulted in an increase in fine-scale nuclear genetic structure and loss of genetic diversity as lion subpopulations became more differentiated, while mitochondrial structure and diversity were maintained over time.

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Section: Discussionmentioning

confidence: 99%

Spatiotemporal Genetic Diversity of Lions Reveals the Influence of Habitat Fragmentation across Africa

Curry

Davis

Bertola

et al. 2020

Molecular Biology and Evolution

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show abstract

“…Although nuclear diversity has decreased significantly, mtDNA diversity has remained constant over time ( Table 1). Mitochondrial DNA is matrilineally inherited, and localized studies show there is little or no female-mediated gene flow between subpopulations across Africa (32,46,47). Female lions primarily remain with their natal pride while males disperse (48,49).…”

Section: Discussionmentioning

confidence: 99%

Spatiotemporal Genetic Diversity of Lions

Curry

Davis

Bertola

et al. 2020

Preprint

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The Scramble for Africa in the late 1800s marked the beginning of increased human population growth in Africa. Here, we determined the genetic architecture of both historical and modern lions to identify changes in genetic diversity that occurred during this period of landscape and anthropogenic change. We surveyed microsatellite and mitochondrial genetic variation from 143 high-quality museum specimens of known provenance and combined them with data from recently published nuclear and mitochondrial studies. Analysis of variation at 9 microsatellites and 280 polymorphic mitogenome SNPs indicate the presence of male-mediated gene flow and recent isolation of local subpopulations, likely due to habitat fragmentation. Nuclear markers showed a significant decrease in genetic diversity from the historical (HE=0.833) to the modern (HE=0.796) populations, while mitochondrial genetic diversity was maintained (Hd=0.98 for both). While the historical population appears to have been panmictic based on nDNA data, hierarchical structure analysis identified four tiers of fine structure in modern populations, able to detect most sampling locations. Mitochondrial analyses identified 4 clusters: Southern, Mixed, Eastern, and Western; and were consistent between modern and historically sampled haplotypes. Within the last century, habitat fragmentation caused lion subpopulations to become more isolated as human expansion changed the African landscape. This resulted in an increase in finescale nuclear genetic structure and loss of genetic diversity as subpopulations became more differentiated, while mitochondrial structure and diversity was maintained over time.

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The Decline in the Lion Population in Africa and Possible Mitigation Measures

Trinkel

Angelici²

2015

Problematic Wildlife

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Dual phylogenetic origins ofNigerian lions (Panthera leo)

Cited by 5 publications

References 41 publications

Spatiotemporal Genetic Diversity of Lions Reveals the Influence of Habitat Fragmentation across Africa

Spatiotemporal Genetic Diversity of Lions Reveals the Influence of Habitat Fragmentation across Africa

Spatiotemporal Genetic Diversity of Lions

The Decline in the Lion Population in Africa and Possible Mitigation Measures

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