globalchange  > 过去全球变化的重建
DOI: 10.1371/journal.pone.0137085
论文题名:
Common Ancestry Is a Poor Predictor of Competitive Traits in Freshwater Green Algae
作者: Anita Narwani; Markos A. Alexandrou; James Herrin; Alaina Vouaux; Charles Zhou; Todd H. Oakley; Bradley J. Cardinale
刊名: PLOS ONE
ISSN: 1932-6203
出版年: 2015
发表日期: 2015-9-8
卷: 10, 期:9
语种: 英语
英文关键词: Phylogenetics ; Algae ; Phylogenetic analysis ; Fresh water ; Phosphates ; Brownian motion ; Nitrates ; Species interactions
英文摘要: Phytoplankton species traits have been used to successfully predict the outcome of competition, but these traits are notoriously laborious to measure. If these traits display a phylogenetic signal, phylogenetic distance (PD) can be used as a proxy for trait variation. We provide the first investigation of the degree of phylogenetic signal in traits related to competition in freshwater green phytoplankton. We measured 17 traits related to competition and tested whether they displayed a phylogenetic signal across a molecular phylogeny of 59 species of green algae. We also assessed the fit of five models of trait evolution to trait variation across the phylogeny. There was no significant phylogenetic signal for 13 out of 17 ecological traits. For 7 traits, a non-phylogenetic model provided the best fit. For another 7 traits, a phylogenetic model was selected, but parameter values indicated that trait variation evolved recently, diminishing the importance of common ancestry. This study suggests that traits related to competition in freshwater green algae are not generally well-predicted by patterns of common ancestry. We discuss the mechanisms by which the link between phylogenetic distance and phenotypic differentiation may be broken.
URL: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0137085&type=printable
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/22678
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

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作者单位: BU-G11 Überlandstrasse 133, Department of Aquatic Ecology, Eawag (Swiss Federal Institute of Aquatic Science and Technology), 8600, Dübendorf, Switzerland;1556 Dana Building, 440 Church Street, School of Natural Resources and Environment, University of Michigan, Ann Arbor, MI, 48109–1041, United States of America;4101 Life Sciences Building, UCEN Road, Department of Ecology, Evolution and Marine Biology, University of California Santa Barbara, Santa Barbara, CA, 93106, United States of America;1556 Dana Building, 440 Church Street, School of Natural Resources and Environment, University of Michigan, Ann Arbor, MI, 48109–1041, United States of America;1556 Dana Building, 440 Church Street, School of Natural Resources and Environment, University of Michigan, Ann Arbor, MI, 48109–1041, United States of America;1556 Dana Building, 440 Church Street, School of Natural Resources and Environment, University of Michigan, Ann Arbor, MI, 48109–1041, United States of America;4101 Life Sciences Building, UCEN Road, Department of Ecology, Evolution and Marine Biology, University of California Santa Barbara, Santa Barbara, CA, 93106, United States of America;1556 Dana Building, 440 Church Street, School of Natural Resources and Environment, University of Michigan, Ann Arbor, MI, 48109–1041, United States of America

Recommended Citation:
Anita Narwani,Markos A. Alexandrou,James Herrin,et al. Common Ancestry Is a Poor Predictor of Competitive Traits in Freshwater Green Algae[J]. PLOS ONE,2015-01-01,10(9)
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