Academic Journal
Evaluation of the taxonomic rank of the terrestrial orchid Cephalanthera subaphylla based on allozymes
| العنوان: | Evaluation of the taxonomic rank of the terrestrial orchid Cephalanthera subaphylla based on allozymes |
|---|---|
| المؤلفون: | Chung, Mi Yoon, Son, Sungwon, Chung, Jae Min, López-Pujol, Jordi, Yukawa, Tomohisa, Chung, Myong Gi |
| المساهمون: | National Research Foundation of Korea, Ministry of Education and Human Resource Development (South Korea) |
| بيانات النشر: | Plant Taxonomic Society of Korea |
| سنة النشر: | 2019 |
| المجموعة: | Digital.CSIC (Consejo Superior de Investigaciones Científicas / Spanish National Research Council) |
| مصطلحات موضوعية: | Allozymes, Bayesian clustering approach, Cephalanthera, Nei’s genetic identity, PCoA, Species rank |
| الوصف: | The taxonomic rank of the tiny-leaved terrestrial orchid Cephalanthera subaphylla Miyabe & Kudô has been somewhat controversial, as it has been treated as a species or as an infraspecific taxon, under C. erecta (Thunb.) Blume [C. erecta var. subaphylla (Miyabe & Kudô) Ohwi and C. erecta f. subaphylla (Miyabe & Kudô) M. Hiro]. Allozyme markers, traditionally employed for delimiting species boundaries, are used here to gain information for determining the taxonomic status of C. subaphylla. To do this, we sampled three populations of five taxa (a total of 15 populations) of Cephalanthera native to the Korean Peninsula [C. erecta, C. falcata (Thunb.) Blume, C. longibracteata Blume, C. longifolia (L.) Fritsch, and C. subaphylla]. Among 20 putative loci resolved, three were monomorphic (Dia-2, Pgi-1, and Tpi-1) across the five species. Apart from C. longibracteata, there was no allozyme variation within the remaining four species. Of the 51 alleles harbored by these 17 polymorphic loci, each of the 27 alleles at 14 loci was unique to a single species. Accordingly, we found low average values of Nei’s genetic identities (I) between ten species pairs (from I = 0.250 for C. erecta versus C. longifolia to I = 0.603 for C. falcata vs. C. longibracteata), with C. subaphylla being genetically clearly differentiated from the other species (from I = 0.349 for C. subaphylla vs. C. longifolia to 0.400 for C. subaphylla vs. C. falcata). These results clearly indicate that C. subaphylla is not genetically related to any of the other taxa of Cephalanthera that are native to the Korean Peninsula, including C. erecta. In a principal coordinate analysis (PCoA), C. subaphylla was positioned distant not only from C. falcata, C. longibracteata, and C. longifolia, but also from C. erecta. Finally, K = 5 was the best clustering scheme using a Bayesian approach, with five clusters precisely corresponding to the five taxa. Thus, our allozyme results strongly suggest that C. subaphylla merits the rank of species. ; This research ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1225-8318 2466-1546 |
| Relation: | Publisher's version; https://doi.org/10.11110/kjpt.2019.49.2.118; Sí; Korean Journal of Plant Taxonomy 49(2): 118-126 (2019); http://hdl.handle.net/10261/188586; http://dx.doi.org/10.13039/501100003725 |
| DOI: | 10.11110/kjpt.2019.49.2.118 |
| DOI: | 10.13039/501100003725 |
| الاتاحة: | http://hdl.handle.net/10261/188586 https://doi.org/10.11110/kjpt.2019.49.2.118 https://doi.org/10.13039/501100003725 |
| Rights: | open |
| رقم الانضمام: | edsbas.CA91E183 |
| قاعدة البيانات: | BASE |
| تدمد: | 12258318 24661546 |
|---|---|
| DOI: | 10.11110/kjpt.2019.49.2.118 |