Cargando…

Georeferenced phylogenetic analysis of a global collection of wild and cultivated Citrullus species

The geographical origin of watermelon (Citrullus lanatus) remains debated. While a first hypothesis suggests the center of origin to be West Africa, where the endemic sister species C. mucosospermus thrives, a second hypothesis suggests northeastern Africa where the white‐fleshed Sudanese Kordophan...

Descripción completa

Detalles Bibliográficos
Autores principales: Achigan‐Dako, Enoch G., Degbey, Hervé, Hale, Iago, Blattner, Frank R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7882934/
https://www.ncbi.nlm.nih.gov/pubmed/33614013
http://dx.doi.org/10.1002/ece3.7189
_version_ 1783651151812493312
author Achigan‐Dako, Enoch G.
Degbey, Hervé
Hale, Iago
Blattner, Frank R.
author_facet Achigan‐Dako, Enoch G.
Degbey, Hervé
Hale, Iago
Blattner, Frank R.
author_sort Achigan‐Dako, Enoch G.
collection PubMed
description The geographical origin of watermelon (Citrullus lanatus) remains debated. While a first hypothesis suggests the center of origin to be West Africa, where the endemic sister species C. mucosospermus thrives, a second hypothesis suggests northeastern Africa where the white‐fleshed Sudanese Kordophan melon is cultivated. In this study, we infer biogeographical and haplotype genealogy for C. lanatus, C. mucosospermus, C. amarus, and C. colocynthis using noncoding cpDNA sequences (trnT‐trnL and ndhF‐rpl32 regions) from a global collection of 135 accessions. In total, we identified 38 haplotypes in C. lanatus, C. mucosospermus, C. amarus, and C. colocynthis; of these, 21 were found in Africa and 17 appear endemic to the continent. The least diverse species was C. mucosospermus (5 haplotypes) and the most diverse was C. colocynthis (16 haplotypes). Some haplotypes of C. mucosospermus were nearly exclusive to West Africa, and C. lanatus and C. mucosospermus shared haplotypes that were distinct from those of both C. amarus and C. colocynthis. The results support previous findings that revealed C. mucosospermus to be the closest relative to C. lanatus (including subsp. cordophanus). West Africa, as a center of endemism of C. mucosospermus, is an area of interest in the search of the origin of C. lanatus. This calls for further historical and phylogeographical investigations and wider collection of samples in West and northeastern Africa.
format Online
Article
Text
id pubmed-7882934
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher John Wiley and Sons Inc.
record_format MEDLINE/PubMed
spelling pubmed-78829342021-02-19 Georeferenced phylogenetic analysis of a global collection of wild and cultivated Citrullus species Achigan‐Dako, Enoch G. Degbey, Hervé Hale, Iago Blattner, Frank R. Ecol Evol Original Research The geographical origin of watermelon (Citrullus lanatus) remains debated. While a first hypothesis suggests the center of origin to be West Africa, where the endemic sister species C. mucosospermus thrives, a second hypothesis suggests northeastern Africa where the white‐fleshed Sudanese Kordophan melon is cultivated. In this study, we infer biogeographical and haplotype genealogy for C. lanatus, C. mucosospermus, C. amarus, and C. colocynthis using noncoding cpDNA sequences (trnT‐trnL and ndhF‐rpl32 regions) from a global collection of 135 accessions. In total, we identified 38 haplotypes in C. lanatus, C. mucosospermus, C. amarus, and C. colocynthis; of these, 21 were found in Africa and 17 appear endemic to the continent. The least diverse species was C. mucosospermus (5 haplotypes) and the most diverse was C. colocynthis (16 haplotypes). Some haplotypes of C. mucosospermus were nearly exclusive to West Africa, and C. lanatus and C. mucosospermus shared haplotypes that were distinct from those of both C. amarus and C. colocynthis. The results support previous findings that revealed C. mucosospermus to be the closest relative to C. lanatus (including subsp. cordophanus). West Africa, as a center of endemism of C. mucosospermus, is an area of interest in the search of the origin of C. lanatus. This calls for further historical and phylogeographical investigations and wider collection of samples in West and northeastern Africa. John Wiley and Sons Inc. 2021-01-27 /pmc/articles/PMC7882934/ /pubmed/33614013 http://dx.doi.org/10.1002/ece3.7189 Text en © 2021 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Achigan‐Dako, Enoch G.
Degbey, Hervé
Hale, Iago
Blattner, Frank R.
Georeferenced phylogenetic analysis of a global collection of wild and cultivated Citrullus species
title Georeferenced phylogenetic analysis of a global collection of wild and cultivated Citrullus species
title_full Georeferenced phylogenetic analysis of a global collection of wild and cultivated Citrullus species
title_fullStr Georeferenced phylogenetic analysis of a global collection of wild and cultivated Citrullus species
title_full_unstemmed Georeferenced phylogenetic analysis of a global collection of wild and cultivated Citrullus species
title_short Georeferenced phylogenetic analysis of a global collection of wild and cultivated Citrullus species
title_sort georeferenced phylogenetic analysis of a global collection of wild and cultivated citrullus species
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7882934/
https://www.ncbi.nlm.nih.gov/pubmed/33614013
http://dx.doi.org/10.1002/ece3.7189
work_keys_str_mv AT achigandakoenochg georeferencedphylogeneticanalysisofaglobalcollectionofwildandcultivatedcitrullusspecies
AT degbeyherve georeferencedphylogeneticanalysisofaglobalcollectionofwildandcultivatedcitrullusspecies
AT haleiago georeferencedphylogeneticanalysisofaglobalcollectionofwildandcultivatedcitrullusspecies
AT blattnerfrankr georeferencedphylogeneticanalysisofaglobalcollectionofwildandcultivatedcitrullusspecies