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Table 6 in A phylogenetic investigation of the taxonomically problematic Eucalyptus odorata complex (E. section Adnataria series Subbuxeales): evidence for extensive interspecific gene flow and reticulate evolution

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Zenodo2025-04-05 更新2026-05-26 收录
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Table 6. An overview of the three possible classification schemes for the E. odorata complex outlined on the basis of the findings of the phylogenetic study present here. Current taxonMorphology-driven classificationHybrid classificationStrict phylogenetic classificationE. viridisE. viridisE. viridisE. viridisE. aeneaE. aeneaE. aenea /= E. viridis= E. viridisE. castrensisPotential mixed hybrid population – further sampling neededPotential mixed hybrid population – further sampling neededPotential mixed hybrid population – further sampling neededE. viridis var. latiusculaPotential new taxon – further sampling neededPotential new taxon – further sampling neededPotential new taxon – further sampling neededE. odorataE. odorata (distribution reduced to west of Murray Basin and south of the Flinders Ranges)E. odorata (distribution reduced to west of Murray Basin and south of the Flinders Ranges)E. odorataE. cajuputeaE. cajuputea (distribution reduced to only Flinders Ranges)E. cajuputea (distribution reduced to only Flinders Ranges)= E. odorataE. polybracteaE. polybractea (distribution reduced to only central Victoria and West WyalongE. polybractea (distribution reduced to only central Victoria and West WyalongE. polybractea (distribution reduced to only central Victoria and West Wyalong regionregion of NSW, populations of E. polybractea subsp. subcerea of uncertain classification between E. polybractea and E. wimmerensis)region of NSW, populations of E. polybractea subsp. subcerea of uncertain classification between E. polybractea and E. wimmerensis)of NSW, populations of E. polybractea subsp. subcerea of uncertain classification between E. polybractea and E. wimmerensis)E. filiformisE. filiformis= E. polybractea= E. polybracteaE. yarriambiackE. yarriambiackE. yarriambiack= E. polybracteaE. wimmerensisE. wimmerensisE. wimmerensisE. wimmerensisE. walshiiE. walshii= E. wimmerensis= E. wimmerensisE. hawkeriE. × silvestrisE. × silvestrisE. × silvestrisE. silvestrisE. × silvestrisE. × silvestrisE. × silvestris The morphological scheme largely accepts the current morphology-based species with minor adjustments on the basis of genetic findings, whereas the strict phylogenetic classification reduces the group to only those species with genetic evidence for representing distinct lineages. The final hybrid classification strikes a balance by synonymising species where there is evidence against them representing distinct lineages, but respects the morphological classification where there is a lack of evidence for distinctness.

表6 基于本项系统发育研究结果拟定的香桉复合群(E. odorata complex)3种可能分类方案概览 当前分类群 | 基于形态学的分类系统 | 杂交类群分类系统 | 严格系统发育分类系统 绿桉(E. viridis) | 绿桉(E. viridis) | 绿桉(E. viridis) | 绿桉(E. viridis) 铜绿桉(E. aenea) | 铜绿桉(E. aenea) | 铜绿桉(E. aenea) = 绿桉(E. viridis) | 绿桉(E. viridis) 卡斯特伦桉(E. castrensis) | 疑似混杂杂交种群——需进一步采样 | 疑似混杂杂交种群——需进一步采样 | 疑似混杂杂交种群——需进一步采样 宽叶绿桉变种(E. viridis var. latiuscula) | 疑似新分类群——需进一步采样 | 疑似新分类群——需进一步采样 | 疑似新分类群——需进一步采样 香桉(E. odorata) | 香桉(E. odorata,分布范围缩减至墨累盆地以西与弗林德斯岭以南区域) | 香桉(E. odorata,分布范围缩减至墨累盆地以西与弗林德斯岭以南区域) | 香桉(E. odorata) 白千层桉(E. cajuputea) | 白千层桉(E. cajuputea,仅分布于弗林德斯岭区域) | 白千层桉(E. cajuputea,仅分布于弗林德斯岭区域) | 归为香桉(E. odorata) 多苞桉(E. polybractea) | 多苞桉(E. polybractea,分布范围缩减至维多利亚州中部与新南威尔士州韦亚隆西部区域;其亚变种E. polybractea subsp. subcerea的分类地位处于多苞桉与威默里桉(E. wimmerensis)之间,暂未明确) | 多苞桉(E. polybractea,分布范围缩减至维多利亚州中部与新南威尔士州韦亚隆西部区域;其亚变种E. polybractea subsp. subcerea的分类地位处于多苞桉与威默里桉(E. wimmerensis)之间,暂未明确) | 多苞桉(E. polybractea,分布范围缩减至维多利亚州中部与新南威尔士州韦亚隆西部区域;其亚变种E. polybractea subsp. subcerea的分类地位处于多苞桉与威默里桉(E. wimmerensis)之间,暂未明确) 丝状桉(E. filiformis) | 归为多苞桉(E. polybractea) | 归为多苞桉(E. polybractea) | 归为多苞桉(E. polybractea) 亚姆宾克桉(E. yarriambiack) | 亚姆宾克桉(E. yarriambiack) | 亚姆宾克桉(E. yarriambiack) | 归为多苞桉(E. polybractea) 威默里桉(E. wimmerensis) | 威默里桉(E. wimmerensis) | 威默里桉(E. wimmerensis) | 威默里桉(E. wimmerensis) 沃尔什桉(E. walshii) | 沃尔什桉(E. walshii) | 归为威默里桉(E. wimmerensis) | 归为威默里桉(E. wimmerensis) 霍克桉(E. hawkeri) | 西尔维斯特杂交桉(E. × silvestris) | 西尔维斯特杂交桉(E. × silvestris) | 西尔维斯特杂交桉(E. × silvestris) 西尔维斯特杂交桉(E. × silvestris) | 西尔维斯特杂交桉(E. × silvestris) | 西尔维斯特杂交桉(E. × silvestris) | 西尔维斯特杂交桉(E. × silvestris) 基于形态学的分类系统大体保留当前基于形态学界定的物种,仅依据遗传学研究结果做出小幅调整;而严格系统发育分类系统则将类群缩减至仅包含有遗传学证据支持为独立演化支的物种。最终的杂交类群分类系统则兼顾两者:在有证据表明类群并非独立演化支时,将其归为同物异名;在缺乏类群独立性证据时,则遵循基于形态学的分类界定。

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