Using molecular markers for detecting domestication, improvement, and adaptation genes

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Development of statistical tests to detect selection (strictly speaking, departures from the neutral equilibrium model) has been an active area of research in population genetics over the last 15 years. With the advent of dense genome sequencing of many domesticated crops, some of this machinery (which heretofore has been largely restricted to human genetics and evolutionary biology) is starting to be applied in the search for genes under recent selection in crop species. We review the population genetics of signatures of selection and formal tests of selection, with discussions as to how these apply in the search for domestication and improvement genes in crops and for adaptation genes in their wild relatives. Plant domestication has specific features, such as complex demography, selfing, and selection of alleles starting at intermediate frequencies, that compromise many of the standard tests, and hence the full power of tests for selection has yet to be realized.

Original languageEnglish (US)
Pages (from-to)1-17
Number of pages17
JournalEuphytica
Volume161
Issue number1-2
DOIs
StatePublished - May 2008

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domestication
Population Genetics
genetic markers
population genetics
crops
Genes
genes
wild relatives
testing
Medical Genetics
selfing
demography
statistical analysis
Alleles
Demography
Genome
alleles
Biological Sciences
genome
Research

Keywords

  • Detecting selection
  • Genomic scans
  • Selective sweeps

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Horticulture
  • Plant Science

Cite this

Using molecular markers for detecting domestication, improvement, and adaptation genes. / Walsh, James "Bruce".

In: Euphytica, Vol. 161, No. 1-2, 05.2008, p. 1-17.

Research output: Contribution to journalArticle

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