Using DNA markers to delineate populations of Yakima Basin steelhead

Introduction

Conclusions

Prosser Dam

Roza Dam SH

SH Population

Resident Trout

3) Identify if resident trout samples collected above Roza Dam

are different genetically from the steelhead collections from

Roza Dam

Roza Dam Steelhead

Project Objectives

Results

• There are no private alleles observed in the resident trout

samples

• The observed allele frequencies of the 2006 resident trout

collection are equivalent to the Roza Dam steelhead collections

• Variance partitioned among collection-within group is

minimized when the Roza Dam collections, including the 2006

resident trout sample, is defined as a group


	1) Three qualitative pieces of evidence supporting the observed similarity between residents and steelhead are the alleles observed in the collections, the genic differentiation tests, and the AMOVA results.
	2) Although our ability to make inferences about the genetic similarity between resident trout and Roza Dam steelhead is limited by the small resident trout sample size included in this study, the genetic data are consistent with the resident trout and steelhead being derived from the same population.