In 1866, the German zoologist Ernst Haeckel (1834-1919) published the first Darwinian trees of life in the history of biology in his book General Morphology of Organisms. We take a specific look at the first phylogenetic trees for the plant kingdom that Haeckel created as part of this two-volume work.
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http://dx.doi.org/10.1016/j.tplants.2016.12.002 | DOI Listing |
Int J Mol Sci
December 2024
College of Life Science, Shaanxi Normal University, Xi'an 710119, China.
Functional divergences of coding genes can be caused by divergences in their coding sequences and expression. However, whether and how expression divergences and coding sequence divergences coevolve is not clear. Gene expression divergences in differentiated cells and tissues recapitulate developmental models within a species, while gene expression divergences between analogous cells and tissues resemble traditional phylogenies in different species, suggesting that gene expression divergences are molecular traits that can be used for evolutionary studies.
View Article and Find Full Text PDFFront Immunol
December 2024
Department of Quantitative and Computational Biology, University of Southern California, Los Angeles, CA, United States.
The adaptive immune system generates a diverse array of B-cell receptors through the processes of V(D)J recombination and somatic hypermutation. B-cell receptors that bind to an antigen will undergo clonal expansion, creating a Darwinian evolutionary dynamic within individuals. A key step in studying these dynamics is to identify sequences derived from the same ancestral V(D)J recombination event (i.
View Article and Find Full Text PDFNat Commun
November 2024
State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, Shanghai, China.
The stereoselectivity of enzymes plays a central role in asymmetric biocatalytic reactions, but there remains a dearth of evolution-driven biochemistry studies investigating the evolutionary trajectory of this vital property. Imine reductases (IREDs) are one such enzyme that possesses excellent stereoselectivity, and stereocomplementary members are pervasive in the family. However, the regulatory mechanism behind stereocomplementarity remains cryptic.
View Article and Find Full Text PDFbioRxiv
October 2024
Department of Biology, Utah State University, Logan, USA.
Understanding how mutations arise and spread through individuals and populations is fundamental to evolutionary biology. Most organisms have a life cycle with unicellular bottlenecks during reproduction. However, some organisms like plants, fungi, or colonial animals can grow indefinitely, changing the manner in which mutations spread throughout both the individual and the population.
View Article and Find Full Text PDFJ Hist Biol
September 2024
Institute of History (IH), Spanish National Research Council (CSIC), Madrid, Spain.
This paper offers an historical introduction to Pere Alberch's evolutionary thought and his contributions to Evo-Devo, based on his unique approach to experimental teratology. We will take as our point of reference the teratogenic experiments developed by Alberch and Emily A. Gale during the 1980s, aimed at producing monstrous variants of frogs and salamanders.
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