| Autor: |
Jian-Wen Zhang, Norbert Kilian, Jiang-Hua Huang, Hang Sun |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
PhytoKeys, Vol 230, Iss , Pp 115-130 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1314-2003 |
| DOI: |
10.3897/phytokeys.230.107733 |
| Popis: |
Our first record of the rare and scatteredly distributed Ixeridium sagittarioides for Guizhou, China, triggered a study to assess its systematic position. The species was placed in four different genera in the course of its taxonomic history and was recently treated with doubts as a member of Ixeridium in the Flora of China. Comparative morphological investigation and phylogenetic analyses based on the nuclear ribosomal DNA internal transcribed spacer (nrITS) and five non-coding plastid DNA regions (petD region, psbA-trnH, trnL-trnF, rpl32-trnL (UAG) and 5´rps16-trnQ (UUG) spacers) provided evidence that the species is not a member of Ixeridium and the Crepidinae but has evolved by ancient hybridisation of members of the Lactuca alliance (Lactucinae). It is reinstated as Lactuca sagittarioides and a comprehensive morphological description is provided, based on material from its entire range of distribution. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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