An integrative view on the systematic position of the cupressophyte Cephalotaxus
Abstract We made an in‐depth review of historical studies of the cupressophyte conifer genus Cephalotaxus Siebold & Zucc. with an emphasis on its systematic position. We suggest that the systematic position of the genus is better understood using an integrative approach, so the evolution of phen...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-07-01
|
| Series: | Ecology and Evolution |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/ece3.10273 |
| _version_ | 1797357930331242496 |
|---|---|
| author | Yong Yang Zhi Yang David Kay Ferguson Jia‐Yi Shong |
| author_facet | Yong Yang Zhi Yang David Kay Ferguson Jia‐Yi Shong |
| author_sort | Yong Yang |
| collection | DOAJ |
| description | Abstract We made an in‐depth review of historical studies of the cupressophyte conifer genus Cephalotaxus Siebold & Zucc. with an emphasis on its systematic position. We suggest that the systematic position of the genus is better understood using an integrative approach, so the evolution of phenetic characters is discussed within the context of recent phylogenomics. We propose that the genus should be classified as a separate family Cephalotaxaceae belonging to the clade consisting of Cupressaceae, Cephalotaxaceae, and Taxaceae; the family Cephalotaxaceae is sister to the Taxaceae but not nested within the Taxaceae and is characterized by a unique set of characters including morphology, anatomy, embryology, and chemistry. The family Cephalotaxaceae shows transitional characters between the Cupressaceae and the Taxaceae; the family possesses female cones with a primary cone axis bearing 5–8 pairs of decussate bracts, which is similar to the typical female cones of the Cupressaceae, on the one hand, and may have given rise to the reduced female cone of the Taxaceae with one terminal ovule partially or completely enclosed in a fleshy aril. In parallel, the compound male cone of the Cephalotaxaceae evolved into the seemingly “simple” male cones of the Taxaceae by means of reduction, elimination, and fusion. |
| first_indexed | 2024-03-08T14:52:36Z |
| format | Article |
| id | doaj.art-8fa4e28753b442ee96c565aa4bca355c |
| institution | Directory Open Access Journal |
| issn | 2045-7758 |
| language | English |
| last_indexed | 2024-03-08T14:52:36Z |
| publishDate | 2023-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj.art-8fa4e28753b442ee96c565aa4bca355c2024-01-11T02:50:01ZengWileyEcology and Evolution2045-77582023-07-01137n/an/a10.1002/ece3.10273An integrative view on the systematic position of the cupressophyte CephalotaxusYong Yang0Zhi Yang1David Kay Ferguson2Jia‐Yi Shong3Co‐Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment Nanjing Forestry University Nanjing ChinaCo‐Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment Nanjing Forestry University Nanjing ChinaDepartment of Paleontology University of Vienna Vienna AustriaCo‐Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment Nanjing Forestry University Nanjing ChinaAbstract We made an in‐depth review of historical studies of the cupressophyte conifer genus Cephalotaxus Siebold & Zucc. with an emphasis on its systematic position. We suggest that the systematic position of the genus is better understood using an integrative approach, so the evolution of phenetic characters is discussed within the context of recent phylogenomics. We propose that the genus should be classified as a separate family Cephalotaxaceae belonging to the clade consisting of Cupressaceae, Cephalotaxaceae, and Taxaceae; the family Cephalotaxaceae is sister to the Taxaceae but not nested within the Taxaceae and is characterized by a unique set of characters including morphology, anatomy, embryology, and chemistry. The family Cephalotaxaceae shows transitional characters between the Cupressaceae and the Taxaceae; the family possesses female cones with a primary cone axis bearing 5–8 pairs of decussate bracts, which is similar to the typical female cones of the Cupressaceae, on the one hand, and may have given rise to the reduced female cone of the Taxaceae with one terminal ovule partially or completely enclosed in a fleshy aril. In parallel, the compound male cone of the Cephalotaxaceae evolved into the seemingly “simple” male cones of the Taxaceae by means of reduction, elimination, and fusion.https://doi.org/10.1002/ece3.10273Cephalotaxaceaegymnospermsintegrative taxonomyphylogenomics |
| spellingShingle | Yong Yang Zhi Yang David Kay Ferguson Jia‐Yi Shong An integrative view on the systematic position of the cupressophyte Cephalotaxus Ecology and Evolution Cephalotaxaceae gymnosperms integrative taxonomy phylogenomics |
| title | An integrative view on the systematic position of the cupressophyte Cephalotaxus |
| title_full | An integrative view on the systematic position of the cupressophyte Cephalotaxus |
| title_fullStr | An integrative view on the systematic position of the cupressophyte Cephalotaxus |
| title_full_unstemmed | An integrative view on the systematic position of the cupressophyte Cephalotaxus |
| title_short | An integrative view on the systematic position of the cupressophyte Cephalotaxus |
| title_sort | integrative view on the systematic position of the cupressophyte cephalotaxus |
| topic | Cephalotaxaceae gymnosperms integrative taxonomy phylogenomics |
| url | https://doi.org/10.1002/ece3.10273 |
| work_keys_str_mv | AT yongyang anintegrativeviewonthesystematicpositionofthecupressophytecephalotaxus AT zhiyang anintegrativeviewonthesystematicpositionofthecupressophytecephalotaxus AT davidkayferguson anintegrativeviewonthesystematicpositionofthecupressophytecephalotaxus AT jiayishong anintegrativeviewonthesystematicpositionofthecupressophytecephalotaxus AT yongyang integrativeviewonthesystematicpositionofthecupressophytecephalotaxus AT zhiyang integrativeviewonthesystematicpositionofthecupressophytecephalotaxus AT davidkayferguson integrativeviewonthesystematicpositionofthecupressophytecephalotaxus AT jiayishong integrativeviewonthesystematicpositionofthecupressophytecephalotaxus |