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Plastid phylogenomic analysis of tribe Myoporeae (Scrophulariaceae)
Plant Systematics and Evolution ( IF 1.9 ) Pub Date : 2020-04-17 , DOI: 10.1007/s00606-020-01678-4
Rachael M. Fowler , Todd G. B. McLay , Tanja M. Schuster , Bevan J. Buirchell , Daniel J. Murphy , Michael J. Bayly

This study presents an analysis of plastomes to assess relationships among the seven genera of tribe Myoporeae (Scrophulariaceae). Sampling included individuals from type species for all seven genera included in Myoporeae ( Bontia , Calamphoreus , Diocirea , Eremophila , Glycocystis , Myoporum , Pentacoelium ), one additional species of the large genus Eremophila , one representative of the sister tribe Leucophylleae ( Leucophyllum ), and the previously published plastome of Scrophularia takesimensis as an outgroup. Phylogenetic analyses were performed using maximum parsimony and Bayesian inference analyses based on > 7000 variable nucleotide positions. Maximum parsimony analysis produced a single tree with the same topology as the Bayesian consensus tree, and all nodes were fully resolved with 100% bootstrap support and 1.0 Bayesian posterior probability. Tribe Myoporeae was supported as monophyletic and sister to Leucophylleae. Two lineages are identified within Myoporeae; one containing the Australian endemic genera Calamphoreus , Diocirea , Glycocystis and the type species of Eremophila ( E. oppositifolia ), the second containing species with distributions outside of Australia ( Bontia , Myoporum , Pentacoelium ) and a species of Eremophila ( E. gibbifolia ). Eremophila is thus supported as polyphyletic. The application of genome skimming and assembly of plastomes has resolved generic relationships in tribe Myoporeae and revealed variable regions of the genome that will be useful in further genetic study of the group.

中文翻译:

土拨鼠科(Scrophulariaceae)的质体系统发育分析

本研究对塑性体进行了分析,以评估 Myoporeae (Scrophulariaceae) 七个属之间的关系。抽样包括来自 Myoporeae 中所有 7 个属的类型物种的个体( Bontia 、 Calamporeus 、 Diocirea 、 Eremophila 、 Glycocystis 、 Myoporum 、 Pentacoelium ),一个大属 Eremophila 的另外一个物种,Leucophylleae 姐妹部落的一个代表先前发表的玄参的塑性体作为外群。基于> 7000 个可变核苷酸位置,使用最大简约和贝叶斯推理分析进行系统发育分析。最大简约分析产生了与贝叶斯共识树具有相同拓扑结构的单个树,并且所有节点都在 100% bootstrap 支持和 1. 0 贝叶斯后验概率。Tribe Myoporeae 被支持为单系和 Leucophylleae 的姐妹。在 Myoporeae 中确定了两个谱系;一个包含澳大利亚特有属 Calamphoreus、Diocirea、Glycocystis 和 Eremophila (E. oppositifolia) 的模式种,第二个包含分布在澳大利亚以外的物种 (Bontia、Myoporum、Pentacoelium) 和一个 Eremophila (E. gibbifolia)。因此,Eremophila 被支持为多系。基因组撇取和塑性体组装的应用已经解决了 Myoporeae 部落中的一般关系,并揭示了基因组的可变区域,这将有助于对该群体的进一步遗传研究。一个包含澳大利亚特有属 Calamphoreus、Diocirea、Glycocystis 和 Eremophila (E. oppositifolia) 的模式种,第二个包含分布在澳大利亚以外的物种 (Bontia、Myoporum、Pentacoelium) 和一个 Eremophila (E. gibbifolia)。因此,Eremophila 被支持为多系。基因组撇取和塑性体组装的应用已经解决了 Myoporeae 部落中的一般关系,并揭示了基因组的可变区域,这将有助于对该群体的进一步遗传研究。一个包含澳大利亚特有属 Calamphoreus、Diocirea、Glycocystis 和 Eremophila (E. oppositifolia) 的模式种,第二个包含分布在澳大利亚以外的物种 (Bontia、Myoporum、Pentacoelium) 和一个 Eremophila (E. gibbifolia)。因此,Eremophila 被支持为多系。基因组撇取和塑性体组装的应用已经解决了 Myoporeae 部落中的一般关系,并揭示了基因组的可变区域,这将有助于对该群体的进一步遗传研究。因此,Eremophila 被支持为多系。基因组撇取和塑性体组装的应用已经解决了 Myoporeae 部落中的一般关系,并揭示了基因组的可变区域,这将有助于对该群体的进一步遗传研究。因此,Eremophila 被支持为多系。基因组撇取和塑性体组装的应用已经解决了 Myoporeae 部落中的一般关系,并揭示了基因组的可变区域,这将有助于对该群体的进一步遗传研究。
更新日期:2020-04-17
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