@article{fdi:010091955,
  title = {{T}uta absoluta's population genetic structure across {A}frica : two well-delineated but weakly differentiated groups suggesting few introductions and significant gene flow},
  author = {{J}aval, {M}arion and {N}diaye, {A}. and {L}oiseau, {A}. and {B}ocar, {B}. {A}. and {G}arba, {M}. and {B}r{\'e}vault, {T}. and {G}authier, {N}athalie},
  editor = {},
  language = {{ENG}},
  abstract = {1. {D}escribing the genetic structure and diversity of invasive insect pest populations is essential to better understand a species' invasion history and success throughout its distribution range. {T}uta absoluta ({M}eyrick) ({L}epidoptera, {G}elechiidae) is a destructive pest of tomato and many other solanaceous crops, with very high economic impacts. {I}ts invasion threatens food security in a large part of the globe, in areas such as sub-{S}aharan {A}frica where the agricultural resilience has already been weakened by rapid human-induced changes due in particular to population growth, increased trade and global change. 2. {T}his work aimed to investigate the diversity and genetic structure of 60 populations of {T}. absoluta using microsatellite markers, with a particular focus on sub-{S}aharan {A}frica. 3. {O}ur results revealed distinct differentiation and diversity patterns between {T}. absoluta native versus invaded areas, and high genetic homogeneity among the {A}frican populations sampled. {H}owever, for the first time, two weakly differentiated but distinct genetic clusters in {A}frica were identified. 4. {T}he results suggest few introduction events of the species in {A}frica or multiple introductions from genetically close areas, significant gene flow between outbreaks and seem to indicate the existence of two distinct clusters in {A}frica. {T}his new data enable us to formulate hypotheses on the species' invasion patterns and the dynamics of its invasive populations. 5. {T}hese hypotheses must be verified with more extensive sampling over the whole range of {T}. absoluta, especially in its presumed native area.},
  keywords = {genetic structure ; insect pest populations ; invasive alien species ; microsatellite markers ; {S}outh {A}merican tomato pinworm ; sub-{S}aharan {A}frica ; {AFRIQUE} {SUBSAHARIENNE}},
  booktitle = {},
  journal = {{A}gricultural and {F}orest {E}ntomology},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[18 p.]},
  ISSN = {1461-9555},
  year = {2024},
  DOI = {10.1111/afe.12658},
  URL = {https://www.documentation.ird.fr/hor/fdi:010091955},
}