Divergence time estimates and the evolution of major lineages in the florideophyte red algae SCIE SCOPUS

Cited 82 time in WEB OF SCIENCE Cited 81 time in Scopus
Title
Divergence time estimates and the evolution of major lineages in the florideophyte red algae
Author(s)
Yang, Eun Chan; Boo, Sung Min; Bhattacharya, Debashish; Saunders, Gary W.; Knoll, Andrew H.; Fredericq, Suzanne; Graf, Louis; Yoon, Hwan Su
KIOST Author(s)
Yang, Eun Chan(양은찬)
Publication Year
2016-02-19
Abstract
The Florideophyceae is the most abundant and taxonomically diverse class of red algae (Rhodophyta). However, many aspects of the systematics and divergence times of the group remain unresolved. Using a seven-gene concatenated dataset (nuclear EF2, LSU and SSU rRNAs, mitochondrial cox1, and plastid rbcL, psaA and psbA genes), we generated a robust phylogeny of red algae to provide an evolutionary timeline for florideophyte diversification. Our relaxed molecular clock analysis suggests that the Florideophyceae diverged approximately 943 (817-1,049) million years ago (Ma). The major divergences in this class involved the emergence of Hildenbrandiophycidae [ca. 781 (681-879) Ma], Nemaliophycidae [ca. 661 (597-736) Ma], Corallinophycidae [ca. 579 (543-617) Ma], and the split of Ahnfeltiophycidae and Rhodymeniophycidae [ca. 508 (442-580) Ma]. Within these clades, extant diversity reflects largely Phanerozoic diversification. Divergences within Florideophyceae were accompanied by evolutionary changes in the carposporophyte stage, leading to a successful strategy for maximizing spore production from each fertilization event. Our research provides robust estimates for the divergence times of major lineages within the Florideophyceae. This timeline was used to interpret the emergence of key morphological innovations that characterize these multicellular red algae.
ISSN
2045-2322
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/40386
DOI
10.1038/srep21361
Bibliographic Citation
SCIENTIFIC REPORTS, v.6, 2016
Publisher
NATURE PUBLISHING GROUP
Subject
NEOPROTEROZOIC DOUSHANTUO FORMATION; SUBUNIT RIBOSOMAL DNA; HILDENBRANDIA RHODOPHYTA; CORALLINE ALGAE; PIT CONNECTIONS; NOV RHODOPHYTA; ORD-NOV; ORDOVICIAN; PROPOSAL; MICROFOSSIL
Type
Article
Language
English
Document Type
Article
Publisher
NATURE PUBLISHING GROUP
Related Researcher
Research Interests

Algae,Systematics,Ecology,조류,계통,생태

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