@article{fdi:010079325,
  title = {{F}ine-scale spatial genetic structure, mating, and gene dispersal patterns in {P}arkia biglobosa populations with different levels of habitat fragmentation},
  author = {{L}ompo, {D}. and {V}inceti, {B}. and {K}onrad, {H}. and {D}uminil, {J}{\'e}r{\^o}me and {G}eburek, {T}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}remise {A} good understanding of genetic variation and gene dispersal in tree populations is crucial for their sustainable management, particularly in a context of rapid environmental changes. {W}est {A}frican {S}udanian savannahs are being fragmented and degraded, partly due to expansion of crop cultivation and monocultures that reduce tree density and may impact pollinators. {T}he population dynamics of important indigenous trees could also be affected. {W}e investigated the influence of habitat fragmentation on patterns of genetic diversity and gene dispersal of a key {S}udanian agroforestry tree species,{P}arkia biglobosa. {M}ethods {U}sing 10 highly polymorphic nuclear microsatellites, we genotyped 2475 samples from reproductive trees, seedlings, and embryos in four tree populations presenting different levels of habitat fragmentation. {R}esults {P}arkia biglobosapresented similar high genetic diversity across the four populations studied. {G}enetic diversity and inbreeding were similar between adults and embryo cohorts. {I}n all four populations, the selfing rate was less than 1%. {T}he effective number of pollen donors per tree was high ({N}-{EP} similar to 18-22), as was the pollen immigration rate (from 34 to 74%). {P}ollen dispersal was characterized by a fat-tailed distribution with mean estimates exceeding 200 m. {I}n three populations, stem diameter had a pronounced effect on male reproductive success. {H}ere, the highest male reproductive success was observed in trees with a diameter at breast height between 60 and 75 cm. {C}onclusions {A}t the scale analyzed, fragmentation does not seem to pose limitations to gene flow in any of the sites investigated, regardless of the landscape configuration associated with the different tree stands. {T}he study provides useful insights on the reproductive biology of an important tree species in the {W}est {A}frican savannahs.},
  keywords = {gene conservation ; non-timber forest products ; {P}arkia biglobosa ; paternity analysis ; reproductive biology ; spatial genetic structure ; {BURKINA} {FASO} ; {ZONE} {SOUDANIENNE}},
  booktitle = {},
  journal = {{A}merican {J}ournal of {B}otany},
  volume = {107},
  numero = {7},
  pages = {1041--1053},
  ISSN = {0002-9122},
  year = {2020},
  DOI = {10.1002/ajb2.1504},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079325},
}