Candidate loci reveal genetic differentiation between temporally divergent migratory runs of Chinook salmon (Oncorhynchus tshawytscha).

Candidate loci reveal genetic differentiation between temporally divergent migratory runs of Chinook salmon (Oncorhynchus tshawytscha). Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Candidate loci reveal genetic differentiation between temporally divergent migratory runs of Chinook salmon (Oncorhynchus tshawytscha). Abstract Text:

Kathleen G O'Malley,Mark D Camara,Michael A Banks,Kathleen G O'Malley,Mark D Camara,Michael A Banks,Kathleen G O'Malley,Mark D Camara,Michael A Banks,

Local adaptation is a dynamic process driven by selection that can vary both in space and time. One important temporal adaptation for migratory animals is the time at which individuals return to breeding sites. Chinook salmon (Oncorhynchus tshawytscha) are excellent subjects for studying the genetic basis of temporal adaptation because their high seasonal homing fidelity promotes reproductive isolation leading to the formation of local populations across diverse environments. We tested for adaptive genetic differentiation between seasonal runs of Chinook salmon using two candidate loci; the circadian rhythm gene, OtsClock1b, and Ots515NWFSC, a microsatellite locus showing sequence identity to three salmonid genes central to reproductive development. We found significant evidence for two genetically distinct migratory runs in the Feather River, California (OtsClock1b: F(ST) = 0.042, P = 0.02; Ots515NWFSC: F(ST) = 0.058, P = 0.003). In contrast, the fall and threatened spring runs are genetically homogenous based on neutral microsatellite data (F(ST) = -0.0002). Similarly, two temporally divergent migratory runs of Chinook salmon from New Zealand are genetically differentiated based on polymorphisms in the candidate loci (OtsClock1b: F(ST) = 0.083, P-value = 0.001; Ots515NWFSC: F(ST) = 0.095, P-value = 0.000). We used an individual-based assignment method to confirm that these recently diverged populations originated from a single source in California. Tests for selective neutrality indicate that OtsClock1b and Ots515NWFSC exhibit substantial departures from neutral expectations in both systems. The large F(ST )estimates could therefore be the result of directional selection. Evidence presented here suggests that OtsClock1b and Ots515NWFSC may influence migration and spawning timing of Chinook salmon in these river systems.

Candidate loci reveal genetic differentiation between temporally divergent migratory runs of Chinook salmon (Oncorhynchus tshawytscha). Publishing Authors By Initials

KG O'Malley,MD Camara,MA Banks,KG O'Malley,MD Camara,MA Banks,KG O'Malley,MD Camara,MA Banks,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Candidate loci reveal genetic differentiation between temporally divergent migratory runs of Chinook salmon (Oncorhynchus tshawytscha). Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Molecular ecology

VOLUME: 16

Page Numbers: 4930-41

Journal Abbreviation: Mol. Ecol.

ISSN: 0962-1083

DAY: 30

MONTH: 10

YEAR: 2007

Candidate loci reveal genetic differentiation between temporally divergent migratory runs of Chinook salmon (Oncorhynchus tshawytscha). Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 9214478

Candidate loci reveal genetic differentiation between temporally divergent migratory runs of Chinook salmon (Oncorhynchus tshawytscha). Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Candidate loci reveal genetic differentiation between temporally divergent migratory runs of Chinook salmon (Oncorhynchus tshawytscha). Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Candidate loci reveal genetic differentiation between temporally divergent migratory runs of Chinook salmon (Oncorhynchus tshawytscha).

AFFILIATION: Coastal Oregon Marine Experiment Station, Hatfield Marine Science Center, Department of Fisheries and Wildlife, Oregon State University, 2030 SE Marine Science Drive, Newport, Oregon 97365, USA.

Country: England

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Mol Ecol

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Candidate loci reveal genetic differentiation between temporally divergent migratory runs of Chinook salmon Oncorhynchus tshawytscha Related Publications

• 3-Amino-4-hydroxybenzenearsonic acid; oxophenarsine hydrochloride; decomposition rate.
• 3-Amino-4-hydroxybenzenearsonous acid; oxophenarsine hydrochloride; decomposition products.
• A dynamic model for induced reactivation of latent virus.
• A prospective, randomized trial of clear liquids versus low-fat solid diet as the initial meal in mild acute pancreatitis.
• A rational approach to the design of highly effective chiral stationary phases for the liquid chromatographic separation of enantiomers.
• Algal growth response and survival in a range of light and temperature conditions: implications for non-steady-state conditions in waste stabilisation ponds.
• Apparatus for filtration under reduced pressure.
• Associations between employees' work schedules and the vocational consequences of workplace injuries.
• At the cross-roads; the development of our health services.
• Brain-immune communication pathways.
• Candidate loci reveal genetic differentiation between temporally divergent migratory runs of Chinook salmon (Oncorhynchus tshawytscha).
• Deep-water kelp refugia as potential hotspots of tropical marine diversity and productivity.
• Duplicated Clock genes with unique polyglutamine domains provide evidence for nonhomologous recombination in Chinook salmon (Oncorhynchus tshawytscha).
• Effects of participation in consumer-operated service programs on both personal and organizationally mediated empowerment: Results of multisite study.
• Effects of radiograph projection parameter uncertainty on TKA kinematics from model-image registration.
• Incorporating ecologically relevant measures of pesticide effect for estimating the compatibility of pesticides and biocontrol agents.
• Intraoperative assessment of bone cuts to guide surgical technique during total knee arthroplasty.
• Isolation of a Bacillus anthracis-like organism from a periapical abscess.
• Modified therapeutic community treatment for offenders with MICA disorders: substance use outcomes.
• Muscarinic blockade weakens interaction of gamma with theta rhythms in mouse hippocampus.
• Notes on Perlidae.
• PATHOLOGICAL FRACTURES; A CONSIDERATION WITH METACHONDROMATOSIS AND DIFFERENTIAL DIAGNOSES: Osteochondromatosis and Gauchers Disease.
• Permeability of the blood-brain barrier to a novel satiety molecule nesfatin-1.
• Proteomic profiling identifies afamin as a potential biomarker for ovarian cancer.
• Removal of Prussian blue from contaminated soil in the rhizosphere of cyanogenic plants.
• Restoration of acutely thrombosed arterio-venous fistulae by rTPA and percutaneous angioplasty.
• Substituted chlorodiamino-s-triazines.
• Surgical treatment of sterility.
• The impact of early trauma and abuse on residential substance abuse treatment outcomes for women.
• Using mathematical modeling and control to develop structured treatment interruption strategies for HIV infection.