Skip to main content
padlock icon - secure page this page is secure

Phylogenetic reconstruction of Asperula sect. Cynanchicae (Rubiaceae) reveals a mosaic of evolutionary histories

Buy Article:

$14.41 + tax (Refund Policy)

In the present study, we attempt to reconstruct the phylogeny of Asperula sect. Cynanchicae (Rubiaceae: Rubieae), using both nuclear and chloroplast DNA markers. We test different methodological approaches to clarify relationships and to hypothesize divergence times for the section. The inferred phylogenetic hypothesis shows that sect. Cynanchicae is eastern Mediterranean to western Asian in origin and that a clear East/West split occurred early in the diversification of the section. Several species are not sharply separated and, from a morphological point of view, clear synapomorphies are lacking. Informal groups previously described (such as “ser. Palaeomediterraneae”) are often artificial. Asperula aristata and A. cynanchica, the two most widespread species of the section, turned out to be non-monophyletic. According to our results, they were probably involved in the origin and/or in the diversification of various extant members of the section. The evolution of A. sect. Cynanchicae has been shaped by a succession of events, among which incorporation of extraneous genomes by genetically aggressive species, progenitor-derivative speciation and hybridization, played a major role.
No Reference information available - sign in for access.
No Citation information available - sign in for access.

4 items.

No Article Media
No Metrics

Keywords: ASPERULA SECT. CYNANCHICAE; BAYESIAN PHYLOGENETICS; COMPILOSPECIES; HYBRIDIZATION; NARROW ENDEMICS; PROGENITOR-DERIVATIVE SPECIATION

Document Type: Research Article

Affiliations: 1: Dipartimento di Biologia, Università degli Studi di Napoli “Federico II”, Via Foria 223, 80139 Napoli, Italy;, Email: [email protected] 2: Dipartimento di Biologia, Università degli Studi di Napoli “Federico II”, Via Foria 223, 80139 Napoli, Italy

Publication date: 28 August 2015

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more