Evolution
Evolution
4th Edition
ISBN: 9781605356051
Author: Douglas Futuyma, Mark Kirkpatrick
Publisher: SINAUER
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Chapter 9, Problem 6PDT
Summary Introduction

To determine: Alternative hypothesis taken into consideration before concluding that the regions having higher FST values as genomic islands of speciation.

Introduction: The fixation index (FST) is a measure of population differentiation as a result of genetic variation. When two populations are partly isolated by hybridizing then alleles transfer genetic information between species. This transfer of information is uneven across the genome. These regions of the genome are referred to as “genomic islands of speciation”. These regions show greater genetic diversity as compared to the rest of the genome.

Summary Introduction

To distinguish: The hypothesis used for “genomic island of speciation”.

Introduction: “The genomic islands of speciation” refer to the part of the genome that underlies reproductive isolation is resistant to the effects of gene flow. These regions display greater divergence than the rest of the genomes and also make the population distinct from others.

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