A molecular phylogeny of Eragrostis (Poaceae: Chloridoideae: Eragrostideae): making lovegrass monophyletic in Australia

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2020-08-21 DOI:10.1071/SB19034

Russell L. Barrett, P. M. Peterson, Konstantin Romaschenko

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引用次数: 6

Abstract

Abstract. We present a phylogeny based on four DNA molecular markers (rps16–trnK spacer, rps16 intron, rpl32–trnL spacer and ITS) concentrating on species of Eragrostis Wolf in Australia. Two Australian radiations are shown within Eragrostis, one being centred in the arid zone and one in the monsoon tropics. The genus is paraphyletic, with species of Cladoraphis Franch., Ectrosia R.Br., Harpachne Hochst. ex A.Rich., Heterachne Benth., Neeragrostis Bush, Planichloa B.K.Simon, Psammagrostis C.A.Gardner & C.E.Hubb. and Stiburus Stapf together forming a well supported clade mixed with Eragrostis species. The molecular results are consistent with recognition of an expanded Eragrostis and we make the following new combinations for Australian taxa: Eragrostis agrostoides (Benth.) R.L.Barrett & P.M.Peterson, E. anomala (C.E.Hubb.) R.L.Barrett & P.M.Peterson, E. appressa (S.T.Blake) R.L.Barrett & P.M.Peterson, E. baileyi (C.E.Hubb.) R.L.Barrett & P.M.Peterson, E. blakei (C.E.Hubb.) R.L.Barrett & P.M.Peterson, E. confusa (C.E.Hubb.) R.L.Barrett & P.M.Peterson, E. danesii (Domin) R.L.Barrett & P.M.Peterson, E. gulliveri (F.Muell.) R.L.Barrett & P.M.Peterson, E. leporina (R.Br.) R.L.Barrett & P.M.Peterson, E. nervilemma (B.K.Simon) R.L.Barrett & P.M.Peterson, E. ovata (Night.) R.L.Barrett & P.M.Peterson, E. scabrida (C.E.Hubb.) R.L.Barrett & P.M.Peterson, E. wiseana (C.A.Gardner & C.E.Hubb.) R.L.Barrett & P.M.Peterson and Sporobolus ramigerus (F.Muell.) P.M.Peterson, Romasch. & R.L.Barrett, and propose the following new names: E. divergens R.L.Barrett & P.M.Peterson, E. lilliputiana R.L.Barrett & P.M.Peterson and E. nightingaleae R.L.Barrett & P.M.Peterson. Lectotypes are designated for Ectrosia agrostoides Benth., E. anomala C.E.Hubb., E. appressa S.T.Blake, E. baileyi C.E.Hubb., E. blakei C.E.Hubb., E. confusa C.E.Hubb., E. gulliveri F.Muell., E laxa S.T.Blake, E. leporina R.Br, E. leporina var. longiglumis C.E.Hubb., E. schultzii Benth., E. schultzii var. annua C.E.Hubb., E. spadicea R.Br., Glyceria australasica Steud., Heterachne gulliveri Benth., Heterachne gulliveri var. major C.E.Hubb. Poa ramigera F.Muell. and Psammagrostis wiseana C.A.Gardner & C.E.Hubb.

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Eragrostis的分子系统发育（Poacee:Chloridoideae:Eragrostideae）：使澳大利亚的爱情草成为单系

摘要我们提出了一个基于四个DNA分子标记（rps16–trnK间隔子、rps16内含子、rpl32–trnL间隔子和ITS）的系统发育，这些标记集中在澳大利亚的Eragrostis Wolf物种上。Eragrostis内显示了两个澳大利亚辐射，一个集中在干旱区，一个在季风热带。该属为副系，种为枝形目。，Ectrosia R.Br.，Harpachine Hochst。前A.Rich.，Heterachne Benth。，Neeragrostis Bush、Planichloa B.K.Simon、Psammagrostis C.A.Gardner&C.E.Hubb.和Stiburus Stapf共同形成了一个与Eragrostis物种混合的分支。分子结果与对扩展Eragrostis的识别一致，我们为澳大利亚分类群做出了以下新组合：Eragrostisagrostoides（Benth.）R.L.Barrett和P.M.Peterson，E.anomala（C.E.Hubb.）R.L.巴雷特和P.M.彼得森，E.appressa（S.T.Blake）R.L.barett和P.M.Peterson，E.blakei（C.E.Hubb.）R.L.Barrett&P.M.Peterson，E.confusa，E.wiseana（C.A.Gardner&C.E.Hubb.）R.L.Barrett&P.M.Peterson和Sporobolus ramigerus（F.Muell.）P.M.Petersen，RomaschR.L.Barrett，并提出以下新名称：E.diversions R.L.Barrett&P.M.Peterson、E.lilliputiana R.L.Barret&P.M.彼得森和E.nightingaleae R.L.Barrette&P.M.Peter森。，E.anomala C.E.Hubb.、E.appressa S.T.Blake、E.baileyi C.E.Hubb.、E.blakei C.E.Hubb.、E.confusa C.E.Hubb、E.guliveri F.Muell、E.laxa S.T.Blanc、E.leporina R.Br、E.lepolina var.longiglumis C.E.Hubb.E.schultzii Benth。，E.schultzii var.annua C.E.Hubb.，E.spadicea R.Br.，澳大利亚甘油。，Heterachne guliveri Benth。，Heterachne guliveri var.major C.E.Hubb、Poa ramigera F.Muell和Psammagrostis wiseana C.A.Gardner&C.E.Hubb。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.