scholarly journals Adaptive Role of Inversion Polymorphism of Drosophila subobscura in Lead Stressed Environment

PLoS ONE ◽  
2015 ◽  
Vol 10 (6) ◽  
pp. e0131270 ◽  
Author(s):  
Bojan Kenig ◽  
Zorana Kurbalija Novičić ◽  
Aleksandra Patenković ◽  
Marina Stamenković-Radak ◽  
Marko Anđelković
Keyword(s):  
Drosophila Subobscura ◽  
Inversion Polymorphism ◽  
Adaptive Role

Adaptive Role of Lipids in Algae under Metal Ions Impact (a Review)

2018 ◽  
Vol 54 (6) ◽  
pp. 78-93
Author(s):  
V. V. Grubinko ◽  
O. I. Bodnar ◽  
A. I. Lutsiv ◽  
G. B. Viniarska
Keyword(s):  
Metal Ions ◽  
Adaptive Role

scholarly journals Risky Politics? Associations between Adolescent Risk Preference and Political Engagement

2019 ◽  
Author(s):  
Benjamin Oosterhoff
Keyword(s):  
Risk Preference ◽  
Political Engagement ◽  
Political Interest ◽  
Government Officials ◽  
Adolescent Risk ◽  
Future Data ◽  
Monitoring The Future ◽  
Nationally Representative ◽  
Adaptive Role

This study examined associations among adolescent risk preference and political engagement using nationally representative Monitoring the Future data from high school seniors (N=109,574; modal age=18 years) spanning 1976-2014. Greater risk preference was associated with greater past voting, donating to a campaign, writing government officials, boycotting, and protesting. Greater risk preference was associated with higher future intentions to boycott and protest, but lower intentions to donate to or volunteer for a campaign. In general, associations between risk preference and political engagement became stronger with higher levels of political interest. Results highlight the importance of considering the adaptive role of adolescent risk preference and suggest that political engagement may be a constructive outlet for youth who pursue or are comfortable taking risks.

Gene loss and gain in the evolution of the vertebrates

Development ◽  
1994 ◽  
Vol 1994 (Supplement) ◽  
pp. 155-161
Author(s):  
Frank H. Ruddle ◽  
Kevin L. Bentley ◽  
Michael T. Murtha ◽  
Neil Risch
Keyword(s):  
Hox Genes ◽  
Gene Loss ◽  
Biological Function ◽  
Hox Gene ◽  
Step Process ◽  
Gene Expansion ◽  
Multiple Clusters ◽  
Adaptive Role ◽  
Hox Clusters

Homeobox cluster genes (Hox genes) are highly conserved and can be usefully employed to study phyletic relationships and the process of evolution itself. A phylogenetic survey of Hox genes shows an increase in gene number in some more recently evolved forms, particularly in vertebrates. The gene increase has occurred through a two-step process involving first, gene expansion to form a cluster, and second, cluster duplication to form multiple clusters. We also describe data that suggests that non-Hox genes may be preferrentially associated with the Hox clusters and raise the possibility that this association may have an adaptive biological function. Hox gene loss may also play a role in evolution. Hox gene loss is well substantiated in the vertebrates, and we identify additional possible instances of gene loss in the echinoderms and urochordates based on PCR surveys. We point out the possible adaptive role of gene loss in evolution, and urge the extension of gene mapping studies to relevant species as a means of its substantiation.

The time when the “Tomte” of evolution was playing with time

2001 ◽  
Vol 24 (2) ◽  
pp. 287-287
Author(s):  
Giorgio M. Innocenti
Keyword(s):  
Developmental Plasticity ◽  
Brain Structures ◽  
Developmental Constraints ◽  
Developmental Mechanisms ◽  
Differential Expansion ◽  
High Degree ◽  
Adaptive Role

Developmental constraints presumably had a major role in channeling evolution. In particular, developmental mechanisms may have coordinated the evolution of neocortex with that of other brain structures. However, the rules determining the differential expansion of different cortical territories remain to be determined as well as the adaptive role of cortical expansion versus that of the structures it is connected to. The high degree of developmental plasticity of neocortex was probably the key to its successful evolution.

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