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113 results for “behavioral genetics”

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dryad28/100

Data from: Host behavior drives parasite genetics at multiple geographic scales: population genetics of the chewing louse, Thomomydoecus minor

Pocket gophers and their symbiotic chewing lice form a host–parasite assemblage known for a high degree of cophylogeny, thought to be driven by life history parameters of both host and parasite that make host switching difficult. However, little work to date has focused on determining whether these life histories actually impact louse populations at the very fine scale of louse infrapopulations (individuals on a single host) at the same or at nearby host localities. We used microsatellite and mtDNA sequence data to make comparisons of chewing-louse (Thomomydoecus minor) population subdivision over time and over geographic space where there are different potential amounts of host interaction surrounding a zone of contact between two hybridizing pocket-gopher subspecies. We found that chewing lice had high levels of population isolation consistent with a paucity of horizontal transmission even at the very fine geographic scale of a single alfalfa field. We also found marked genetic discontinuity in louse populations corresponding with host subspecies and little, if any, admixture in the louse genetic groups even though the lice are closely related. The correlation of louse infrapopulation differentiation with host interaction at multiple scales, including across a discontinuity in pocket-gopher habitat, suggests that host behaviour is the primary driver of parasite genetics. This observation makes sense in light of the life histories of both chewing lice and pocket gophers and provides a powerful explanation for the well-documented pattern of parallel cladogenesis in pocket gophers and chewing lice.

opencc-zeroDec 2014View details →

dryad28/100

Genetic control of collective behavior in zebrafish

<p>Many animals, including humans, have evolved to live and move in groups. In humans, disrupted social interactions are a fundamental feature of many psychiatric disorders. However, we know little about how genes regulate social behavior. Zebrafish may serve as a powerful model to explore this question. By comparing the behavior of wild-type fish to 90 genetic lines, we show that mutations of genes associated with human psychiatric disorders can alter the collective behavior of adult zebrafish. We identify three categories of behavioral variation across mutants: "scattered", in which fish show reduced cohesion; "coordinated", in which fish swim more in aligned schools; and "huddled", in which fish form dense but disordered groups. Changes in individual interaction rules can explain these differences. This work demonstrates how emergent patterns in animal groups can be altered by genetic changes in individuals, and establishes a framework for understanding the fundamentals of social information processing.</p>

opencc-zeroFeb 2020View details →

zenodo28/100

Behavioral and genetic architecture of fear conditioning and related phenotypes

<p>Analysis info and data files accompanying manuscript. Read info file first ("Zeid et al 2022 READ FIRST analysis info and syntax") for instructions on navigating the repository files. This repository includes each dataset as an SPSS file (.sav) and as an Excel file (.xlsx) with the same name.</p>

opencc-by-4.0Sep 2022View details →

ClinicalTrials.gov28/100

Genetic Factors and Interrelationships for Cancer Risk-Related Behaviors and Complex Traits

ClinicalTrials.gov study NCT00001500. IPD Sharing: Not stated. Countries: 1. Publications: 3.

restrictedIPD-UNDECIDEDFeb 2026View details →

dryad28/100