Brown Digital Repository | Item

Full Metadata

Overview

Year:: 2018
Contributor:: Ferranti, David (creator); Nunez, Joaquin (creator); Rand, David (creator); David Rand (advisor); Brown University. Karen T. Romer Undergraduate Teaching and Research Awards (research program)
Genre:: posters
Subject:: Mitochondrial DNA; Single nucleotide polymorphisms; Intertidal organisms; Intertidal zonation; Niche (Ecology); Morphology (Animals); Barnacles
Extent:: 1 poster
DOI: https://doi.org/10.26300/x0a2-he75

Files

Description

Abstract:: We examined genetic and phenotypic variation of the northern acorn barnacle, Semibalanus balanoides, across rocky intertidal habitats in order to assess the strength of natural selection in a heterogeneous environment. Previous work on the nuclear genome of S. balanoides has revealed a signature of selection along the tidal gradient. I analyzed the mitochondrial DNA of S. balanoides individuals living in four differentially-stressed microhabitats from the Damariscotta River in Maine. My results show no evidence of selection in the mitochondrial genome. Further work will involve characterizing the operculum of the barnacle to test for functionally significant phenotypic differences between high-tide and low-tide barnacles. This phenotypic data will be combined with the genetic dataset to perform a genome-wide association study (GWAS).

Content

Citation

Ferranti, David, Nunez, Joaquin, and Rand, David, "Using barnacles to explore the link between genetic and phenotypic variation in a highly heterogeneous environment" (2018). Summer Research Symposium. Brown Digital Repository. Brown University Library. https://doi.org/10.26300/x0a2-he75

Relations

Collection:

Summer Research Symposium

Each year, Brown University showcases the research of its undergraduates at the Summer Research Symposium. More than half of the student-researchers are UTRA recipients, while others receive funding from a variety of Brown-administered and national programs and fellowships and go …
...

Using barnacles to explore the link between genetic and phenotypic variation in a highly heterogeneous environment