Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Repeatedly Northwards and Upwards: Southern African Grasslands Fuel the Colonization of the African Sky Islands in Helichrysum (Compositae)
Vise andre og tillknytning
2023 (engelsk)Inngår i: Plants, Vol. 12, nr 2213, s. 1-24Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The Afromontane and Afroalpine areas constitute some of the main biodiversity hotspots of Africa. They are particularly rich in plant endemics, but the biogeographic origins and evolutionary processes leading to this outstanding diversity are poorly understood. We performed phylogenomic and biogeographic analyses of one of the most species-rich plant genera in these mountains, Helichrysum (Compositae-Gnaphalieae). Most previous studies have focused on Afroalpine elements of Eurasian origin, and the southern African origin of Helichrysum provides an interesting counterexample. We obtained a comprehensive nuclear dataset from 304 species ( 50% of the genus) using target-enrichment with the Compositae1061 probe set. Summary-coalescent and concatenation approaches combined with paralog recovery yielded congruent, well-resolved phylogenies. Ancestral range estimations revealed that Helichrysum originated in arid southern Africa, whereas the southern African grasslands were the source of most lineages that dispersed within and outside Africa. Colonization of the tropical Afromontane and Afroalpine areas occurred repeatedly throughout the Miocene–Pliocene. This timing coincides with mountain uplift and the onset of glacial cycles, which together may have facilitated both speciation and intermountain gene flow, contributing to the evolution of the Afroalpine flora.

sted, utgiver, år, opplag, sider
2023. Vol. 12, nr 2213, s. 1-24
Emneord [en]
Afroalpine; Afromontane; biogeography; Asteraceae; long-distance dispersal; evolution; Helichrysum; phylogeny; target-enrichment
HSV kategori
Forskningsprogram
Livets mångfald
Identifikatorer
URN: urn:nbn:se:nrm:diva-5521OAI: oai:DiVA.org:nrm-5521DiVA, id: diva2:1822743
Tilgjengelig fra: 2023-12-27 Laget: 2023-12-27 Sist oppdatert: 2024-01-08bibliografisk kontrollert

Open Access i DiVA

fulltext(3042 kB)28 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 3042 kBChecksum SHA-512
fd50a7dd16762d4db7be00e2fa3b7675447dccdda2cf3b88f49057619096c2c3be78e22ef3887b7c7bae9b08bdcbbf68db5c11618327bcf62d8310fc962c3898
Type fulltextMimetype application/pdf

Søk i DiVA

Av forfatter/redaktør
Razafimandimbison, Sylvain
Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 28 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

urn-nbn

Altmetric

urn-nbn
Totalt: 20 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf