caa a22 4500 475807197 CHVBK 20180406123750.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1007/BF00985372 doi (NATIONALLICENCE)springer-10.1007/BF00985372 Multiple diploid hybrid speciation of the Canary Island endemic Argyranthemum sundingii (Asteraceae) [Elektronische Daten] [Christian Brochmann, Liv Borgen, Odd Stabbetorp] There are several well-documented examples of multiple hybrid origins of polyploid species. Herein we report the first, to our knowledge, explicit example of a species that most probably has originated recurrently by diploid hybrid speciation. Genetic relationships and stabilization of twoArgyranthemum populations of putative hybrid origin on Tenerife, the Canary Islands, were investigated using chromosomal, morphometric, and fertility analyses of cultivated progeny families and artificial F1 and F2 hybrids. These data were compared to a recently published chloroplast DNA phylogeny of the genus, in which the same populations were included. The results suggest that the two populations must be referred to a single species,A. sundingii, which is diploid, fully fertile, genetically stabilized, and occurs in an ecologically intermediate habitat opened by deforestation, and that this species has originated at least twice following local hybridization in two valleys. The same parental species were involved in each origin; the montaneA. broussonetii and the coastalA. frutescens. The montane species was the chloroplast donor in one of the valleys and the coastal species in the other. Springer-Verlag, 2000 Argyranthemum nationallicence Diploid hybrid speciation nationallicence multiple origins nationallicence genetic stabilization nationallicence artificial hybridization nationallicence Canary Islands nationallicence Brochmann Christian Botanical Garden and Museum, University of Oslo, Trondheimsveien 23 B, N-0562, Oslo, Norway aut Borgen Liv Botanical Garden and Museum, University of Oslo, Trondheimsveien 23 B, N-0562, Oslo, Norway aut Stabbetorp Odd Norwegian Institute for Nature Research, P. O. Box 736 Sentrum, N-0105, Oslo, Norway aut Plant Systematics and Evolution Springer-Verlag 220/1-2(2000-03-01), 77-92 0378-2697 220:1-2<77 2000 220 606 https://doi.org/10.1007/BF00985372 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00985372 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Brochmann Christian Botanical Garden and Museum, University of Oslo, Trondheimsveien 23 B, N-0562, Oslo, Norway aut NATIONALLICENCE 700 1- Borgen Liv Botanical Garden and Museum, University of Oslo, Trondheimsveien 23 B, N-0562, Oslo, Norway aut NATIONALLICENCE 700 1- Stabbetorp Odd Norwegian Institute for Nature Research, P. O. Box 736 Sentrum, N-0105, Oslo, Norway aut NATIONALLICENCE 773 0- Plant Systematics and Evolution Springer-Verlag 220/1-2(2000-03-01), 77-92 0378-2697 220:1-2<77 2000 220 606 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer