| Title: |
Genetic breaks caused by ancient forest fragmentation: phylogeography of Staudtia kamerunensis (Myristicaceae) reveals distinct clusters in the Congo Basin. |
| Authors: |
Hardy, Olivier J.; Monthe, Franck; Gillet, Jean-François; Angoboy Ilondea, Bhély; Assumani, Dieu-Merci; Boupoya, Clay Archange; Janssens, Steven B.; Kamdem, Narcisse Guy; Matvijev, Katarina; Bouka, Gael U. D.; Sonké, Bonaventure; Beeckman, Hans; Lisingo, Janvier; Vanden Abeele, Samuel; Deklerck, Victor; Flot, Jean-François |
| Contributors: |
{"funder_name":"Belgian Federal Science Policy Office, Belgium","funder_doi":"http://dx.doi.org/10.13039/501100002749","funder_position":"0","funder_isni":"0000 0000 9736 7474","funder_ror":"https://ror.org/01fapfv42","funder_award": "HERBAXYLAREDD Projects (BR/143/A3/HERBAXYLAREDD)","AFRIFORD Project (BR/132/A1/AFRIFORD)" },{"funder_name":"H2020 Marie Skłodowska-Curie Actions, European Union","funder_doi":"http://dx.doi.org/10.13039/100010665","funder_position":"1","funder_award": "Grant agreement N° 765000" },{"funder_name":"Fonds De La Recherche Scientifique - FNRS, Belgium","funder_doi":"http://dx.doi.org/10.13039/501100002661","funder_position":"2","funder_isni":"0000 0004 0647 2148","funder_ror":"https://ror.org/03q83t159","funder_award": "Grant J.0292.17F" },{"funder_name":"Fondation Philippe Wiener - Maurice Anspach, Belgium","funder_doi":"http://dx.doi.org/10.13039/501100003138","funder_position":"3","funder_isni":"0000 0004 5900 4153","funder_ror":"https://ror.org/013ww9721","funder_award": "Postdoctoral Fellowship" },{"funder_name":"University Foundation Belgium","funder_position":"4","funder_award": "WA-0447" } |
| Publisher Information: |
Springer Science and Business Media LLC |
| Publication Year: |
2023 |
| Subject Terms: |
Myristicaceae; Phylogeography; Congo Basin; Population genetics; Staudtia; African rainforest; Species delimitation; Herbarium; Staudtia kamerunensis |
| Description: |
Documenting species and population diversity is becoming increasingly important as the destruction and degradation of natural ecosystems are leading to a worldwide biodiversity loss. Despite the rapid development of genetic tools, many species remain undocumented and little is known about the diversity of individuals and populations, especially for tropical African plants. In this study, we aim to identify putative hidden species and/or differentiated populations in the tropical African tree Warb. (Myristicaceae), a widespread species characterized by a high morphological diversity and a complex taxonomical history. Historical herbarium vouchers were sampled and leaf or cambium samples were collected in the field, dried in silica gel, and subsequently genotyped at 14 microsatellite loci (SSRs), as well as sequenced for two nuclear genes ( , ) and one plastid region ( ). These genetic data were then analyzed using Bayesian clustering, population genetics, and the construction of haplowebs to assess genetic clustering patterns, the distribution of genetic diversity, and genetic differentiation among populations. Multiple genetically differentiated clusters were observed in parapatry throughout Central Africa. Genetic diversity was high and similar among these clusters, apart from the most differentiated populations in southeast Democratic Republic of the Congo (DR Congo), which showed lower levels of genetic diversity. The genetic breaks detected between populations are likely not indicative of hidden species but rather result from ancient rainforest fragmentation during cold and dry periods in the Pliocene and/or Pleistocene. The strong genetic divergence between populations in southeast DR Congo could be the result of an ongoing speciation linked to ecological niche differentiation. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
Tree Genetics & Genomes |
| DOI: |
10.1007/s11295-023-01601-1 |
| Availability: |
https://doi.org/10.1007/s11295-023-01601-1 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.B1C2BF9 |
| Database: |
BASE |