Evolutionary history of Serpulaceae (Basidiomycota): molecular phylogeny, historical biogeography and evidence for a single transition of nutritional mode

Abstract The Yangtze River is the longest river in Asia, but its evolutionary history has long been debated. So far no robust biological evidences can be found to crack this mystery. Here we reconstruct spatiotemporal and diversification dynamics of endemic East Asian cyprinids based on a largest molecular phylogeny of Cyprinidae, including 1420 species, and show that their ancestors laying adhesive eggs were distributed in southern East Asia before ~24 Ma, subsequently dispersed to the Yangtze River to spawn semi-buoyant eggs at ~19 Ma. This indicates that the Yangtze River diverted eastward around the Oligocene-Miocene boundary. Some of these cyprinids evolved again into fishes producing adhesive eggs at ~13 Ma, together with a peaked net diversification rate, indicating that the river formed a potamo-lacustrine ecosystem during the Mid-Miocene. Our reconstruction of the history of the Yangtze River has higher time resolution and much better continuity than those deriving from geological studies.

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Peer Review #1 of "Molecular phylogeny and evolutionary history of Moricandia DC (Brassicaceae) (v0.1)"

10.7287/peerj.3964v0.1/reviews/1 ◽

2017 ◽

Keyword(s):

Molecular Phylogeny ◽

Peer Review ◽

Evolutionary History ◽

History Of

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An Analysis of the Sectional Classification of Anthurium (Araceae): Comparing Infrageneric Groupings and Their Diagnostic Morphology with a Molecular Phylogeny of the Genus

Annals of the Missouri Botanical Garden ◽

10.3417/2018215 ◽

2019 ◽

Vol 104 (1) ◽

pp. 69-82 ◽

Cited By ~ 2

Author(s):

Mónica M. Carlsen ◽

Thomas B. Croat

Keyword(s):

Molecular Phylogeny ◽

Evolutionary History ◽

Morphological Characters ◽

Taxon Sampling ◽

Species Relationships ◽

History Of ◽

Sectional Classification

This study presents an evaluation of the currently accepted sectional classification of the genus Anthurium Schott (Araceae) in light of a recently published molecular phylogeny for the group. In general, disagreements between these two occur because many diagnostic morphological characters used in the sectional classification turned out to be highly homoplasious within Anthurium, with multiple independent gains or losses of seemingly similar morphologies in distantly related clades. A new sectional classification of Anthurium that more accurately represents species relationships and the evolutionary history of the genus is much needed, and here we propose the first steps toward it. Results from this study suggest that out of the 18 sections and two series recognized in Anthurium, only seven of these groups are monophyletic (i.e., sections Andiphilum (Schott) Croat, Calomystrium (Schott) Engl., Dactylophyllium (Schott) Engl., Leptanthurium (Schott) Engl., Polyphyllium Engl., Tetraspermium (Schott) Engl., and the newly recognized section Multinervia (Croat) Carlsen & Croat, previously a series within section Pachyneurium (Schott) Engl.). All other sections are either not monophyletic or their monophyly could not be accurately tested. A complete revision of the sectional classification of Anthurium will require a more comprehensive taxon sampling and a better supported molecular phylogeny.

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