World Library  

Add to Book Shelf
Flag as Inappropriate
Email this Book

Plos One : Mitochondrial Capture Misleads About Ecological Speciation in the Daphnia Pulex Complex, Volume 8

By Fontaneto, Diego

Click here to view

Book Id: WPLBN0003963223
Format Type: PDF eBook :
File Size:
Reproduction Date: 2015

Title: Plos One : Mitochondrial Capture Misleads About Ecological Speciation in the Daphnia Pulex Complex, Volume 8  
Author: Fontaneto, Diego
Volume: Volume 8
Language: English
Subject: Journals, Science, Medical Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary)
Publication Date:
Publisher: Plos


APA MLA Chicago

Fontaneto, D. (n.d.). Plos One : Mitochondrial Capture Misleads About Ecological Speciation in the Daphnia Pulex Complex, Volume 8. Retrieved from

Description : The North American ecological species Daphnia pulicaria and Daphnia pulex are thought to have diverged from a common ancestor by adaptation to sympatric but ecologically distinct lake and pond habitats respectively. Based on mtDNA relationships, European D. pulicaria is considered a different species only distantly related to its North American counterpart, but both species share a lactate dehydrogenase (Ldh) allele F supposedly involved in lake adaptation in North America, and the same allele is also carried by the related Holarctic Daphnia tenebrosa. The correct inference of the species’ ancestral relationships is therefore critical for understanding the origin of their adaptive divergence. Our species tree inferred from unlinked nuclear loci for D. pulicaria and D. pulex resolved the European and North American D. pulicaria as sister clades, and we argue that the discordant mtDNA gene tree is best explained by capture of D. pulex mtDNA by D. pulicaria in North America. The Ldh gene tree shows that F-class alleles in D. pulicaria and D. tenebrosa are due to common descent (as opposed to introgression), with D. tenebrosa alleles paraphyletic with respect to D. pulicaria alleles. That D. tenebrosa still segregates the ancestral and derived amino acids at the two sites distinguishing the pond and lake alleles suggests that D. pulicaria inherited the derived states from the D. tenebrosa ancestry. Our results suggest that some adaptations restricting the gene flow between D. pulicaria and D. pulex might have evolved in response to selection in ancestral environments rather than in the species’ current sympatric habitats. The Arctic (D. tenebrosa) populations are likely to provide important clues about these issues.


Click To View

Additional Books

  • Plos One : Protein Analysis of Atrial Fi... (by )
  • Plos One : Phylogenetic Diversity and En... (by )
  • Plos One : the Impact of Choice of Nnrti... (by )
  • Plos One : Systems Analysis of a Mouse X... (by )
  • Plos One : Genome-wide Identification, C... (by )
  • Plos One : Substantial Generalization of... (by )
  • Plos One : Comparison and Mapping Facili... (by )
  • Plos One : Adaptive Evolution of the Hox... (by )
  • Plos One : Profound Olfactory Dysfunctio... (by )
  • Plos One : Ophthalmoscopic Assessment of... (by )
  • Plos One : Prolactin Stimulates Precurso... (by )
  • Plos One : Integrating Chemical Footprin... (by )
Scroll Left
Scroll Right


Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library on the Kindle are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.