Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1007/s00606-016-1381-8 |
| Document | Shareable Link |
| Title (Primary) | Darwin's legacy in Platanthera: are there more than two species in the Platanthera bifolia/chlorantha group? |
| Author | Durka, W.
; Baum, A.; Michalski, S.G.; Baum, H. |
| Source Titel | Plant Systematics and Evolution |
| Year | 2017 |
| Department | BZF; iDiv |
| Volume | 303 |
| Issue | 3 |
| Page From | 419 |
| Page To | 431 |
| Language | englisch |
| Supplements | Supplement 1 Supplement 2 Supplement 3 Supplement 4 Supplement 5 Supplement 6 |
| Keywords | AFLP; Anther distance; Hybridization; Orchidaceae; Platanthera; Spur length |
| UFZ wide themes | RU1; |
| Abstract | In Central Europe, the genus Platanthera traditionally comprised two species, P. chlorantha Cust. ex Rchb. (Pc) and P. bifolia (L.) Rich. (Pb). They are morphologically characterized by a wide and narrow separation of anthers, respectively. However, a third form with intermediate anther distance has repeatedly been hypothesized but only hesitantly accepted. In addition, intermediate morphology has been also used as the main character of P. × hybrida. However, the status of some purported hybrid populations is challenged by the local lack of parental species, their successful reproduction and non-intermediate traits. Despite this unclear situation, detailed genetic and morphological analyses are lacking. Here, we studied morphology and molecular markers within the P. chlorantha/bifolia group in Central Europe. Three morphological groups emerged representing Pc, Pb and a third form, here informally referred to as non-hybrid intermediates (Pn). The latter is characterized, among other trait differences, by intermediate distance between anthers [(0.7)–1–2.2 mm] and long spurs (28–40 mm). Three gene pools were identified, which largely corresponded to the three morphological groups. The Pn gene pool had several high-frequency private alleles substantiating its genetic independence. Some of the Pn populations were previously interpreted as P. × hybrida suggesting that Pn was overlooked hitherto and mistaken to represent hybrids. The non-perfect fit between morphological and genetic groups highlights the potential for fast morphological evolution. Overall, the finding of three distinct lineages within the bifolia/chlorantha group necessitates a thorough reanalysis of reported taxa and a reevaluation of our understanding of their distribution, ecology and evolution. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=18256 |
| Durka, W., Baum, A., Michalski, S.G., Baum, H. (2017): Darwin's legacy in Platanthera: are there more than two species in the Platanthera bifolia/chlorantha group? Plant Syst. Evol. 303 (3), 419 - 431 10.1007/s00606-016-1381-8 |
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