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1
Episodes of diversification and isolation in Island Southeast Asian and Near Oceanian male lineages
Abstract: Island Southeast Asia and Oceania host one of the world’s richest assemblages of human phenotypic, linguistic and cultural diversity. Despite this, the region’s male genetic lineages are globally among the last to remain unresolved. We compiled ∼9.7 Mb of Y chromosome sequence from a diverse sample of over 380 men from this region, including 152 first reported here. The granularity of this dataset allows us to fully resolve and date the regional Y chromosome phylogeny. This new high-resolution tree confirms two main population bursts: multiple rapid diversifications following the region’s initial settlement ∼50 kya, and extensive expansions <6 kya. Notably, ∼40-25 kya the deep rooting local lineages of C-M130, M-P256, and S-B254 show almost no further branching events in Island Southeast Asia, New Guinea and Australia, matching a similar pause in diversification seen in maternal mitochondrial DNA lineages. The main local lineages start diversifying ∼25 kya, at the time of the Last Glacial Maximum. This improved Y chromosome topology highlights localized events with important historical implications, including pre-Holocene contact between Mainland and Island Southeast Asia, potential interactions between Australia and the Papuan world, and a sustained period of diversification following the flooding of the ancient Sunda and Sahul continents as the insular landscape observed today formed. The high-resolution phylogeny of the Y chromosome presented here thus enables a detailed exploration of past isolation, interaction and change in one of the world’s least understood regions.
URL: https://researchonline.jcu.edu.au/72756/7/72756.pdf
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2
Episodes of Diversification and Isolation in Island Southeast Asian and Near Oceanian Male Lineages
In: Mol Biol Evol (2022)
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3
Human genetic approaches to Malayo-Polynesian prehistory
In: The Oxford Guide to the Malayo-Polynesian Languages of Asia and Madagascar ; https://hal.archives-ouvertes.fr/hal-02915656 ; The Oxford Guide to the Malayo-Polynesian Languages of Asia and Madagascar, In press (2020)
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4
Papuan mitochondrial genomes and the settlement of Sahul
In: J Hum Genet (2020)
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5
Papuan mitochondrial genomes and the settlement of Sahul
In: Faculty of Science, Medicine and Health - Papers: Part B (2020)
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6
Papuan mitochondrial genomes and the settlement of Sahul
Pedro, Nicole; Brucato, Nicolas; Fernandes, Veronica. - : Nature Publishing Group, 2020
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7
The Comoros Show the Earliest Austronesian Gene Flow into the Swahili Corridor
In: ISSN: 0002-9297 ; EISSN: 1537-6605 ; American Journal of Human Genetics ; https://hal.archives-ouvertes.fr/hal-02112694 ; American Journal of Human Genetics, Elsevier (Cell Press), 2018, 102 (1), pp.58-68. &#x27E8;10.1016/j.ajhg.2017.11.011&#x27E9; (2018)
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8
The Comoros Show the Earliest Austronesian Gene Flow into the Swahili Corridor
In: ISSN: 0002-9297 ; EISSN: 1537-6605 ; American Journal of Human Genetics ; https://hal.archives-ouvertes.fr/hal-02112694 ; American Journal of Human Genetics, Elsevier (Cell Press), 2018, 102 (1), pp.58-68. &#x27E8;10.1016/j.ajhg.2017.11.011&#x27E9; (2018)
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9
The Comoros Show the Earliest Austronesian Gene Flow into the Swahili Corridor
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10
The Comoros Show the Earliest Austronesian Gene Flow into the Swahili Corridor
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11
Contrasting Linguistic and Genetic Origins of the Asian Source Populations of Malagasy
In: ISSN: 2045-2322 ; EISSN: 2045-2322 ; Scientific Reports ; https://hal.archives-ouvertes.fr/hal-02112772 ; Scientific Reports, Nature Publishing Group, 2016, 6 (1), pp.26066. &#x27E8;10.1038/srep26066&#x27E9; (2016)
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12
Contrasting Linguistic and Genetic Origins of the Asian Source Populations of Malagasy
Kusuma, Pradiptajati; Brucato, Nicolas; Cox, Murray P.. - : Nature Publishing Group, 2016
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13
Mitochondrial DNA and the Y chromosome suggest the settlement of Madagascar by Indonesian sea nomad populations
In: EISSN: 1471-2164 ; BMC Genomics ; https://hal.archives-ouvertes.fr/hal-02112783 ; BMC Genomics, BioMed Central, 2015, 16 (1), pp.191. &#x27E8;10.1186/s12864-015-1394-7&#x27E9; (2015)
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