Grant Kirstie D, Koenemann Daniel, Mansaray Janet, Ahmed Aisha, Khamar Hamid, El Oualidi Jalal, Burke Janelle M
Department of Biological Sciences, Florida Agricultural & Mechanical University, Tallahassee, FL, USA.
Department of Biology, Howard University, Washington, DC, USA.
PhytoKeys. 2022 Aug 5;204:57-72. doi: 10.3897/phytokeys.204.85256. eCollection 2022.
is one of about 50 genera in the knotweed family, Polygonaceae. The genus comprises about 200 species with bisexual, or more commonly, unisexual flowers, with the species displaying monoecious, dioecious, synoecious (hermaphroditic) or polygamous reproductive systems. Some of the dioecious species have heteromorphic sex chromosomes, which is rare amongst angiosperms. We here present a plastid phylogeny of 67 species, representing all four subgenera. For this study, we used three chloroplast markers, , -, - and dense taxon sampling to reconstruct the most comprehensive molecular phylogeny of to date. The reconstructed phylogeny for this work resolves six major clades and one large grade in Rumexsubg.Rumex. In addition, the species with known dioecious reproductive systems are resolved within a broader clade we term "the dioecious clade". These results suggest that the species with divergent reproductive systems are more closely related to each other than to other species comprising the rest of the genus.
是蓼科中约50个属之一。该属包括约200个物种，具有两性花，或更常见的是单性花，这些物种表现出雌雄同株、雌雄异株、雌雄同序（两性花）或多配生殖系统。一些雌雄异株的物种具有异形性染色体，这在被子植物中很少见。我们在此展示了代表所有四个亚属的67个物种的质体系统发育。在这项研究中，我们使用了三个叶绿体标记， ， - ， - 以及密集的分类群抽样，以重建迄今为止最全面的 的分子系统发育。这项工作重建的系统发育解决了酸模亚属酸模中的六个主要分支和一个大的类群。此外，具有已知雌雄异株生殖系统的物种在一个更广泛的分支中得到解决，我们将其称为“雌雄异株分支”。这些结果表明，具有不同生殖系统的物种彼此之间的关系比与构成该属其他部分的其他物种的关系更密切。
需注意，原文中部分内容缺失（如三个叶绿体标记具体名称等），翻译可能会稍显生硬，但已尽量保证忠实原文进行翻译。
