@article{fdi:010061682, title = {{S}ociocultural behavior, sex-biased admixture, and effective population sizes in {C}entral {A}frican pygmies and non-pygmies}, author = {{V}erdu, {P}. and {B}ecker, {N}.{S}.{A}. and {F}roment, {A}lain and {G}eorges, {M}. and {G}rugni, {V}. and {Q}uintana-{M}urci, {L}. and {H}ombert, {J}. {M}. and {V}an der {V}een, {L}. and {L}e {B}omin, {S}. and {B}ahuchet, {S}. and {H}eyer, {E}. and {A}usterlitz, {F}.}, editor = {}, language = {{ENG}}, abstract = {{S}ociocultural phenomena, such as exogamy or phylopatry, can largely determine human sex-specific demography. {I}n {C}entral {A}frica, diverging patterns of sex-specific genetic variation have been observed between mobile hunter-gatherer {P}ygmies and sedentary agricultural non-{P}ygmies. {H}owever, their sex-specific demography remains largely unknown. {U}sing population genetics and approximate {B}ayesian computation approaches, we inferred male and female effective population sizes, sex-specific migration, and admixture rates in 23 {C}entral {A}frican {P}ygmy and non-{P}ygmy populations, genotyped for autosomal, {X}-linked, {Y}-linked, and mitochondrial markers. {W}e found much larger effective population sizes and migration rates among non-{P}ygmy populations than among {P}ygmies, in agreement with the recent expansions and migrations of non-{P}ygmies and, conversely, the isolation and stationary demography of {P}ygmy groups. {W}e found larger effective sizes and migration rates for males than for females for {P}ygmies, and vice versa for non-{P}ygmies. {T}hus, although most {P}ygmy populations have patrilocal customs, their sex-specific genetic patterns resemble those of matrilocal populations. {I}n fact, our results are consistent with a lower prevalence of polygyny and patrilocality in {P}ygmies compared with non-{P}ygmies and a potential female transmission of reproductive success in {P}ygmies. {F}inally, {P}ygmy populations showed variable admixture levels with the non-{P}ygmies, with often much larger introgression from male than from female lineages. {S}ocial discrimination against {P}ygmies triggering complex movements of spouses in intermarriages can explain these male-biased admixture patterns in a patrilocal context. {W}e show how gender-related sociocultural phenomena can determine highly variable sex-specific demography among populations, and how population genetic approaches contrasting chromosomal types allow inferring detailed human sex-specific demographic history.}, keywords = {approximate {B}ayesian computation ; {A}frican {P}ygmy ; demography ; history ; human population genetics ; sex specific ; {AFRIQUE} {CENTRALE}}, booktitle = {}, journal = {{M}olecular {B}iology and {E}volution}, volume = {30}, numero = {4}, pages = {918--937}, ISSN = {0737-4038}, year = {2013}, DOI = {10.1093/molbev/mss328}, URL = {https://www.documentation.ird.fr/hor/fdi:010061682}, }