@article{fdi:010071616,
  title = {{G}enome-wide ancestry and demographic history of {A}frican-descendant {M}aroon communities from {F}rench {G}uiana and {S}uriname},
  author = {{F}ortes-{L}ima, {C}. and {G}essain, {A}. and {R}uiz-{L}inares, {A}. and {B}ortolini, {M}.{C}. and {M}igot-{N}abias, {F}lorence and {B}ellis, {G}. and {M}oreno-{M}ayar, {J}.{V}. and {R}estrepo, {B}.{N} and {R}ojas, {W}. and {A}vendaño-{T}amayo, {E}. and {B}edoya, {G}. and {O}rlando, {L}. and {S}alas, {A}. and {H}elgason, {A}. and {G}ilbert, {M}.{T}.{P}. and {S}ikora, {M}. and {S}chroeder, {H}. and {D}ugoujon, {J}.{M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he transatlantic slave trade was the largest forced migration in world history. {H}owever, the origins of the enslaved {A}fricans and their admixture dynamics remain unclear. {T}o investigate the demographic history of {A}frican-descendant {M}arron populations, we generated genome-wide data (4.3 million markers) from 107 individuals from three {A}frican-descendant populations in {S}outh {A}merica, as well as 124 individuals from six west {A}frican populations. {T}hroughout the {A}mericas, thousands of enslaved {A}fricans managed to escape captivity and establish lasting communities, such as the {N}oir {M}arron. {W}e find that this population has the highest proportion of {A}frican ancestry (∼98%) of any {A}frican-descendant population analyzed to date, presumably because of centuries of genetic isolation. {B}y contrast, {A}frican-descendant populations in {B}razil and {C}olombia harbor substantially more {E}uropean and {N}ative {A}merican ancestry as a result of their complex admixture histories. {U}sing ancestry tract-length analysis, we detect different dates for the {E}uropean admixture events in the {A}frican-{C}olombian (1749 {CE}; confidence interval [{CI}]: 1737-1764) and {A}frican-{B}razilian (1796 {CE}; {CI}: 1789-1804) populations in our dataset, consistent with the historically attested earlier influx of {A}fricans into {C}olombia. {F}urthermore, we find evidence for sex-specific admixture patterns, resulting from predominantly {E}uropean paternal gene flow. {F}inally, we detect strong genetic links between the {A}frican-descendant populations and specific source populations in {A}frica on the basis of haplotype sharing patterns. {A}lthough the {N}oir {M}arron and {A}frican-{C}olombians show stronger affinities with {A}frican populations from the {B}ight of {B}enin and the {G}old {C}oast, the {A}frican-{B}razilian population from {R}io de {J}aneiro has greater genetic affinity with {B}antu-speaking populations from the {B}ight of {B}iafra and west central {A}frica.},
  keywords = {{GUYANE} {FRANCAISE} ; {SURINAME}},
  booktitle = {},
  journal = {{A}merican {J}ournal of {H}uman {G}enetics},
  volume = {101},
  numero = {5},
  pages = {725--736},
  ISSN = {0002-9297},
  year = {2017},
  DOI = {10.1016/j.ajhg.2017.09.021},
  URL = {https://www.documentation.ird.fr/hor/fdi:010071616},
}