Results 81 to 90 of about 1,448,748 (289)

Evolution of reproductive isolation in stickleback fish

open access: yesEvolution, 2016
To understand how new species form and what causes their collapse, we examined how reproductive isolation evolves during the speciation process, considering species pairs with little to extensive divergence, including a recently collapsed pair. We estimated many reproductive barriers in each of five sets of stickleback fish species pairs using our own ...
Alycia C R, Lackey, Janette W, Boughman
openaire   +3 more sources

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Reproductive Isolation through Experimental Manipulation of Sexually Antagonistic Coevolution in Drosophila melanogaster

open access: yesScientific Reports, 2017
Promiscuity can drive the evolution of sexual conflict before and after mating occurs. Post mating, the male ejaculate can selfishly manipulate female physiology, leading to a chemical arms race between the sexes.
Zeeshan Ali Syed   +3 more
doaj   +1 more source

Gut microbiomes and reproductive isolation in Drosophila [PDF]

open access: yesProceedings of the National Academy of Sciences, 2017
Significance The evolutionary significance of assortative mating by diet, mediated by gut bacteria is a puzzle, but it has had a huge impact and has provided a keystone to support increasing interest in the “holobiome.” However, in species such as Drosophila melanogaster ...
Philip T. Leftwich   +3 more
openaire   +4 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

NATURAL SELECTION FOR REPRODUCTIVE ISOLATION INPHLOX [PDF]

open access: yesEvolution, 1967
Divergence in the genic and chromosomal architecture of local populations from the population system norm has been documented in numerous plant and animal species (cf. Grant, 1963, 1964; Mayr, 1963; Ford, 1965). The stimulus for such divergence may be provided by one of an array of environmental challenges.
Donald A, Levin, Harold W, Kerster
openaire   +2 more sources

Reproductive isolation measurements before and after inbreeding, Effect of color on mating choice

open access: yes, 2013
Reproductive isolation measurements in the laboratory at ...
Daniel R. Matute (136631)
core   +1 more source

ACO/CO reproductive isolation

open access: yes, 2023
We ask if three decades and over 1 500 generations of divergent life history selection on age at reproduction has resulted in the evolution of reproductive isolation (RI) between laboratory populations of Drosophila melanogaster. We tested for premating,
Harshavardhan Thyagarajan
core   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

The relationship between intraspecific assortative mating and reproductive isolation between divergent populations

open access: yesCurrent Zoology, 2012
The term 'assortative mating' has been applied to describe two very different phenomena: (1) the tendency for individuals to choose phenotypically similar mates from among conspecifics; or (2) the tendency to prefer conspecific over hete- rospecific ...
Daniel I. BOLNICK, Mark KIRKPATRICK
doaj  

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