Title

Genetics of Sea Star Wasting Disease

Abstract

Sea Star Wasting Disease is a highly lethal, widespread marine virus that has devastated sea star populations on the West Coast since 2013. A harmful mutation exists in a gene in sea stars that appears lethal to individuals that have two copies of the mutation (homozygous genotype). Previous studies suggest that individuals with only one copy (heterozygous) have an advantage in dealing with SSWD, implying that surviving heterozygotes would pass the mutation along at higher frequencies, thus preserving the mutation. This hypothesis was tested by surveying recovering, sick and healthy individuals along the central Oregon coast. Our data did not statistically support the hypothesis; nor did we find differences in genotype frequency between healthy and diseased sea stars. Thus, we found no support that selection due to SSWD is affecting this mutation.

Faculty Sponsor

Delbert Hutchison

Tracks

Secrets of the Deep I

Terms of Use

ARMINDA Terms of Use

Location

Science 100

Presentation Type

Oral Presentation

This document is currently not available here.

Share

COinS
 
Apr 11th, 11:00 AM Apr 11th, 11:15 AM

Genetics of Sea Star Wasting Disease

Science 100

Sea Star Wasting Disease is a highly lethal, widespread marine virus that has devastated sea star populations on the West Coast since 2013. A harmful mutation exists in a gene in sea stars that appears lethal to individuals that have two copies of the mutation (homozygous genotype). Previous studies suggest that individuals with only one copy (heterozygous) have an advantage in dealing with SSWD, implying that surviving heterozygotes would pass the mutation along at higher frequencies, thus preserving the mutation. This hypothesis was tested by surveying recovering, sick and healthy individuals along the central Oregon coast. Our data did not statistically support the hypothesis; nor did we find differences in genotype frequency between healthy and diseased sea stars. Thus, we found no support that selection due to SSWD is affecting this mutation.

Rights Statement

Rights Statement

In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).