Regressive Evolution in the Mexican Cave Tetra, Astyanax mexicanus
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TLDR
It is argued that the energetic cost of their maintenance is sufficiently high for eyes to be detrimental in the cave environment and selection can be caused either by selection or drift.About:
This article is published in Current Biology.The article was published on 2007-03-06 and is currently open access. It has received 245 citations till now. The article focuses on the topics: Eye pigmentation & Cavefish.read more
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BookDOI
The Biology of Caves and Other Subterranean Habitats
David C. Culver,Tanja Pipan +1 more
TL;DR: The Biology of Caves and other Subterranean Habitats offers a concise but comprehensive introduction to cave ecology and evolution and more than 650 references, 150 of which are new since the first edition, provide many entry points to the research literature.
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Adaptation in the age of ecological genomics: insights from parallelism and convergence.
Kathryn R. Elmer,Axel Meyer +1 more
TL;DR: This review shows that the advent of next-generation sequencing technologies and the growing use of genomic approaches make it increasingly feasible to answer fundamental questions of parallel phenotypic diversification in closely related species using ecological and evolutionary 'non-model' populations of vertebrates in nature.
Journal ArticleDOI
Cryptic variation in morphological evolution: HSP90 as a capacitor for loss of eyes in cavefish.
Nicolas Rohner,Daniel F. Jarosz,Johanna E. Kowalko,Masato Yoshizawa,William R. Jeffery,William R. Jeffery,Richard Borowsky,Susan Lindquist,Susan Lindquist,Clifford J. Tabin +9 more
TL;DR: It is suggested that cryptic variation played a role in the evolution of eye loss in cavefish and the first evidence for HSP90 as a capacitor for morphological evolution in a natural setting is provided.
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A Novel Role for Mc1r in the Parallel Evolution of Depigmentation in Independent Populations of the Cavefish Astyanax mexicanus
TL;DR: It is discovered that two distinct genetic alterations in the coding sequence of the gene Mc1r cause reduced pigmentation associated with the brown mutant phenotype in these caves, indicating that certain genes are frequent targets of mutation in the repeated evolution of regressive phenotypes in cave-adapted species.
Journal ArticleDOI
Regressive Evolution in Astyanax Cavefish
TL;DR: Recent advances in Astyanax development and genetics have revealed some of the molecular and cellular mechanisms involved in trait modification, the number and identity of the underlying genes and mutations, the molecular basis of parallel evolution, and the evolutionary forces driving adaptation to the cave environment.
References
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Controlling the false discovery rate: a practical and powerful approach to multiple testing
Yoav Benjamini,Yosef Hochberg +1 more
TL;DR: In this paper, a different approach to problems of multiple significance testing is presented, which calls for controlling the expected proportion of falsely rejected hypotheses -the false discovery rate, which is equivalent to the FWER when all hypotheses are true but is smaller otherwise.
Book
On the Origin of Species by Means of Natural Selection, or, The Preservation of Favoured Races in the Struggle for Life
TL;DR: The "Penguin Classics" edition of "On the Origin of Species" as discussed by the authors contains an introduction and notes by William Bynum, and features a cover designed by Damien Hirst.
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Multiple interval mapping for quantitative trait loci.
TL;DR: Using the MIM model, a stepwise selection procedure with likelihood ratio test statistic as a criterion is proposed to identify QTL and the best strategy of marker-assisted selection for trait improvement for a specific purpose and requirement can be explored.
Journal ArticleDOI
nacre encodes a zebrafish microphthalmia-related protein that regulates neural-crest-derived pigment cell fate.
TL;DR: It is demonstrated that melanophore development in fish and mammals shares a dependence on the nacre/Mitf transcription factor, but that proper development of the retinal pigment epithelium in the fish is not nacre-dependent, suggesting an evolutionary divergence in the function of this gene.
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Genetic analysis of cavefish reveals molecular convergence in the evolution of albinism
Meredith E. Protas,Candace Hersey,Dawn Kochanek,Yi Zhou,Horst Wilkens,William R. Jeffery,Leonard I. Zon,Richard Borowsky,Clifford J. Tabin +8 more
TL;DR: The generation of a genome-wide linkage map is described to allow quantitative trait analysis of evolutionarily derived morphologies in the Mexican cave tetra, a species that has, in a series of independent caves, repeatedly evolved specialized characteristics adapted to a unique and well-studied ecological environment.