| Abstract Detail
Molecular Ecology and Evolution Olšavská, Katarína [1], Slovák, Marek [1], Kučera, Jaromír [1], MARHOLD, KAROL [2]. Cyanus napulifer group (Asteraceae) - a model example of allopatric speciation from Balkan Penninsula (SE Europe). Balkan Peninsula is a centre of European plant diversity, it harbours probably the richest flora in Europe, possessing not only the largest number of species but also hosting more than 60% endemics. Nowadays, many studies have documented importance of modern taxonomic methods for recognition and identification of conservation priorities. However, Balkan flora, in spite its unique status, remains somewhat neglected in respect of biosystematic research. The task of our study was to apply biosystematic approaches to infer historical and current patterns of speciation and divergence within the Cyanus napulifer group [Cyanus section Protocyanus (Dobrocz.) Olšavská] consisting of Balkan (sub-)endemics: C. napulifer (Rochel) Soják s.str., C. orbelicus (Velen.) Soják, C. velenovskyi (AdamoviĂ„‡) Wagenitz & Greuter, C. nissanus (PetroviĂ„‡) Soják, C. thirkei (Sch. Bip.) Holub and C. tuberosus (Vis.) Soják. Based on nuclear DNA sequences, the members of this group have been shown to have very close evolutionary relationships. They are diploids, possess the same base chromosome number x=10 and they are characterized by common morphological features (rhizomatous or/and tuber roots, narrow stem leaves). The species of the Cyanus napulifer group represent promising models for study of speciation among closely related species, because of their patterns of morphological (e.g. blue/pink/white flowers, presence/absence of long creeping rhizomes) and ecological (low/high altitudes, calcareous/granite substrate) variation and geographical distribution (narrow vs. widespread). To understand mechanisms of speciation within the C. napulifer group, we examined genetic (using the AFLP technique), DNA content (using DAPI flow cytometry) and morphological (using multivariate morfometrics) differentiation of 64 populations collected in Balkan Peninsula. We discuss observed variation in relation to data on ecology, geographic distribution, phenology and life strategies.
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1 - Institute of Botany, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, SK-84523, Slovakia
2 - INSTITUTE OF BOTANY/SLOVAK ACAD SCI, DUBRAVSKA CESTA 9, BRATISLAVA, N/A, SK-845 23, Slovakia
Keywords:
Compositae
Asteraceae
Cyanus
AFLP
Balkan Peninsula
flow cytometry
Multivariate morphometrics.
Presentation Type: Poster:Posters for Topics
Session: P
Location: Eyrie/Boise Centre
Date: Monday, July 28th, 2014
Time: 5:30 PM
Number: PME003
Abstract ID:243
Candidate for Awards:None |
