Plastome Sequences Help to Resolve Deep-Level Relationships of Populus in the Family Salicaceae

Populus, a core genus of Salicaceae, plays a significant ecological role as a source of pioneer species in boreal forests. However, interspecific hybridization and high levels of morphological variation among poplars have resulted in great difficulty in classifying species for systematic and compara...

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Main Authors: Dan Zong, Peihua Gan, Anpei Zhou, Yao Zhang, Xinlian Zou, Anan Duan, Yu Song, Chengzhong He
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-01-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fpls.2019.00005/full
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author Dan Zong
Dan Zong
Peihua Gan
Peihua Gan
Anpei Zhou
Anpei Zhou
Yao Zhang
Yao Zhang
Xinlian Zou
Xinlian Zou
Anan Duan
Anan Duan
Anan Duan
Yu Song
Yu Song
Chengzhong He
Chengzhong He
Chengzhong He
spellingShingle Dan Zong
Dan Zong
Peihua Gan
Peihua Gan
Anpei Zhou
Anpei Zhou
Yao Zhang
Yao Zhang
Xinlian Zou
Xinlian Zou
Anan Duan
Anan Duan
Anan Duan
Yu Song
Yu Song
Chengzhong He
Chengzhong He
Chengzhong He
Plastome Sequences Help to Resolve Deep-Level Relationships of Populus in the Family Salicaceae
Frontiers in Plant Science
Populus
Salicaceae
chloroplast genome
phylogenetic
morphological traits
author_facet Dan Zong
Dan Zong
Peihua Gan
Peihua Gan
Anpei Zhou
Anpei Zhou
Yao Zhang
Yao Zhang
Xinlian Zou
Xinlian Zou
Anan Duan
Anan Duan
Anan Duan
Yu Song
Yu Song
Chengzhong He
Chengzhong He
Chengzhong He
author_sort Dan Zong
title Plastome Sequences Help to Resolve Deep-Level Relationships of Populus in the Family Salicaceae
title_short Plastome Sequences Help to Resolve Deep-Level Relationships of Populus in the Family Salicaceae
title_full Plastome Sequences Help to Resolve Deep-Level Relationships of Populus in the Family Salicaceae
title_fullStr Plastome Sequences Help to Resolve Deep-Level Relationships of Populus in the Family Salicaceae
title_full_unstemmed Plastome Sequences Help to Resolve Deep-Level Relationships of Populus in the Family Salicaceae
title_sort plastome sequences help to resolve deep-level relationships of populus in the family salicaceae
publisher Frontiers Media S.A.
series Frontiers in Plant Science
issn 1664-462X
publishDate 2019-01-01
description Populus, a core genus of Salicaceae, plays a significant ecological role as a source of pioneer species in boreal forests. However, interspecific hybridization and high levels of morphological variation among poplars have resulted in great difficulty in classifying species for systematic and comparative evolutionary studies. Here, we present phylogenetic analyses of 24 newly sequenced Populus plastomes and 36 plastomes from GenBank, which represent seven genera of Salicaceae, in combination with a matrix of eighteen morphological characters of 40 Populus taxa to reconstruct highly supported relationships of genus Populus. Relationships among the 60 taxa of Salicaceae strongly supported two monophyletic genera: Populus and Salix. Chosenia was nested within the genus Salix, and five clades within Populus were divided. Clade I included the three taxa P. euphratica, P. pruinosa, and P. ilicifolia. Clade II contained thirteen taxa [P. adenopoda, P. alba, P. bolleana, P. davidiana, P. hopeiensis, P. nigra, P. qiongdaoensis, P. rotundifolia, P. rotundifolia var. duclouxiana, P. tremula, P. tremula × alba, P. tomentosa, and P. tomentosa (NC)]. Clade III included the ten taxa P. haoana, P. kangdingensis, P. lasiocarpa, P. pseudoglauca, P. qamdoensis, P. schneideri, P. simonii, P. szechuanica, P. szechuanica var. tibetica, and P. yunnanensis. Clade IV included P. cathayana, P. gonggaensis, P. koreana, P. laurifolia, P. trinervis, P. wilsonii, and P. xiangchengensis. The last clade comprised P. angustifolia, P. balsamifera, P. deltoides, P. deltoides × nigra, P. fremontii, P. mexicana, and P. trichocarpa. This phylogeny is also supported by morphological traits, including bark smoothness, bud size, petiole shape, leaf inflorescence, male anther length and male anther tip.
topic Populus
Salicaceae
chloroplast genome
phylogenetic
morphological traits
url https://www.frontiersin.org/article/10.3389/fpls.2019.00005/full
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spelling doaj-fc85cf1e25a94984ac56ccb9b0b7965a2020-11-25T01:53:37ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2019-01-011010.3389/fpls.2019.00005434378Plastome Sequences Help to Resolve Deep-Level Relationships of Populus in the Family SalicaceaeDan Zong0Dan Zong1Peihua Gan2Peihua Gan3Anpei Zhou4Anpei Zhou5Yao Zhang6Yao Zhang7Xinlian Zou8Xinlian Zou9Anan Duan10Anan Duan11Anan Duan12Yu Song13Yu Song14Chengzhong He15Chengzhong He16Chengzhong He17Key Laboratory for Forest Genetic and Tree Improvement and Propagation in Universities of Yunnan Province, Southwest Forestry University, Kunming, ChinaKey Laboratory of Biodiversity Conservation in Southwest China, State Forestry Administration, Southwest Forestry University, Kunming, ChinaKey Laboratory for Forest Genetic and Tree Improvement and Propagation in Universities of Yunnan Province, Southwest Forestry University, Kunming, ChinaKey Laboratory of Biodiversity Conservation in Southwest China, State Forestry Administration, Southwest Forestry University, Kunming, ChinaKey Laboratory for Forest Genetic and Tree Improvement and Propagation in Universities of Yunnan Province, Southwest Forestry University, Kunming, ChinaKey Laboratory of Biodiversity Conservation in Southwest China, State Forestry Administration, Southwest Forestry University, Kunming, ChinaKey Laboratory for Forest Genetic and Tree Improvement and Propagation in Universities of Yunnan Province, Southwest Forestry University, Kunming, ChinaKey Laboratory of Biodiversity Conservation in Southwest China, State Forestry Administration, Southwest Forestry University, Kunming, ChinaKey Laboratory for Forest Genetic and Tree Improvement and Propagation in Universities of Yunnan Province, Southwest Forestry University, Kunming, ChinaKey Laboratory of Biodiversity Conservation in Southwest China, State Forestry Administration, Southwest Forestry University, Kunming, ChinaKey Laboratory for Forest Genetic and Tree Improvement and Propagation in Universities of Yunnan Province, Southwest Forestry University, Kunming, ChinaKey Laboratory of Biodiversity Conservation in Southwest China, State Forestry Administration, Southwest Forestry University, Kunming, ChinaKey Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, ChinaCenter for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, ChinaSoutheast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Nay Pyi Taw, MyanmarKey Laboratory for Forest Genetic and Tree Improvement and Propagation in Universities of Yunnan Province, Southwest Forestry University, Kunming, ChinaKey Laboratory of Biodiversity Conservation in Southwest China, State Forestry Administration, Southwest Forestry University, Kunming, ChinaKey Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, ChinaPopulus, a core genus of Salicaceae, plays a significant ecological role as a source of pioneer species in boreal forests. However, interspecific hybridization and high levels of morphological variation among poplars have resulted in great difficulty in classifying species for systematic and comparative evolutionary studies. Here, we present phylogenetic analyses of 24 newly sequenced Populus plastomes and 36 plastomes from GenBank, which represent seven genera of Salicaceae, in combination with a matrix of eighteen morphological characters of 40 Populus taxa to reconstruct highly supported relationships of genus Populus. Relationships among the 60 taxa of Salicaceae strongly supported two monophyletic genera: Populus and Salix. Chosenia was nested within the genus Salix, and five clades within Populus were divided. Clade I included the three taxa P. euphratica, P. pruinosa, and P. ilicifolia. Clade II contained thirteen taxa [P. adenopoda, P. alba, P. bolleana, P. davidiana, P. hopeiensis, P. nigra, P. qiongdaoensis, P. rotundifolia, P. rotundifolia var. duclouxiana, P. tremula, P. tremula × alba, P. tomentosa, and P. tomentosa (NC)]. Clade III included the ten taxa P. haoana, P. kangdingensis, P. lasiocarpa, P. pseudoglauca, P. qamdoensis, P. schneideri, P. simonii, P. szechuanica, P. szechuanica var. tibetica, and P. yunnanensis. Clade IV included P. cathayana, P. gonggaensis, P. koreana, P. laurifolia, P. trinervis, P. wilsonii, and P. xiangchengensis. The last clade comprised P. angustifolia, P. balsamifera, P. deltoides, P. deltoides × nigra, P. fremontii, P. mexicana, and P. trichocarpa. This phylogeny is also supported by morphological traits, including bark smoothness, bud size, petiole shape, leaf inflorescence, male anther length and male anther tip.https://www.frontiersin.org/article/10.3389/fpls.2019.00005/fullPopulusSalicaceaechloroplast genomephylogeneticmorphological traits