Hard lessons for soft selection.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The relative stringencies of hard and soft selection in protecting an allele in a geographically structured population is an important question in the maintenance of genetic variability. It is shown for the generalized two-deme case that hard selection is expected to be less stringent than soft selection roughly half of the time, in sharp contrast to the widely held view that hard selection is almost always more stringent than soft selection. Hard selection is usually expected to be less stringent than soft selection in the n-deme case when those demes in which the allele is favored are more fit than in those demes where the allele is at a disadvantage. This results from reduced migration into the favored demes under hard selection compared with soft selection, enhancing the protection of the allele. -Author

Original languageEnglish (US)
Pages (from-to)518-526
Number of pages9
JournalAmerican Naturalist
Volume124
Issue number4
StatePublished - 1984
Externally publishedYes

Fingerprint

alleles
allele
genetic variation

ASJC Scopus subject areas

  • Ecology

Cite this

Hard lessons for soft selection. / Walsh, James "Bruce".

In: American Naturalist, Vol. 124, No. 4, 1984, p. 518-526.

Research output: Contribution to journalArticle

Walsh, JB 1984, 'Hard lessons for soft selection.', American Naturalist, vol. 124, no. 4, pp. 518-526.
@article{1abea390b4c5457ea52b656d3b2bc8e1,
title = "Hard lessons for soft selection.",
abstract = "The relative stringencies of hard and soft selection in protecting an allele in a geographically structured population is an important question in the maintenance of genetic variability. It is shown for the generalized two-deme case that hard selection is expected to be less stringent than soft selection roughly half of the time, in sharp contrast to the widely held view that hard selection is almost always more stringent than soft selection. Hard selection is usually expected to be less stringent than soft selection in the n-deme case when those demes in which the allele is favored are more fit than in those demes where the allele is at a disadvantage. This results from reduced migration into the favored demes under hard selection compared with soft selection, enhancing the protection of the allele. -Author",
author = "Walsh, {James {"}Bruce{"}}",
year = "1984",
language = "English (US)",
volume = "124",
pages = "518--526",
journal = "American Naturalist",
issn = "0003-0147",
publisher = "University of Chicago",
number = "4",

}

TY - JOUR

T1 - Hard lessons for soft selection.

AU - Walsh, James "Bruce"

PY - 1984

Y1 - 1984

N2 - The relative stringencies of hard and soft selection in protecting an allele in a geographically structured population is an important question in the maintenance of genetic variability. It is shown for the generalized two-deme case that hard selection is expected to be less stringent than soft selection roughly half of the time, in sharp contrast to the widely held view that hard selection is almost always more stringent than soft selection. Hard selection is usually expected to be less stringent than soft selection in the n-deme case when those demes in which the allele is favored are more fit than in those demes where the allele is at a disadvantage. This results from reduced migration into the favored demes under hard selection compared with soft selection, enhancing the protection of the allele. -Author

AB - The relative stringencies of hard and soft selection in protecting an allele in a geographically structured population is an important question in the maintenance of genetic variability. It is shown for the generalized two-deme case that hard selection is expected to be less stringent than soft selection roughly half of the time, in sharp contrast to the widely held view that hard selection is almost always more stringent than soft selection. Hard selection is usually expected to be less stringent than soft selection in the n-deme case when those demes in which the allele is favored are more fit than in those demes where the allele is at a disadvantage. This results from reduced migration into the favored demes under hard selection compared with soft selection, enhancing the protection of the allele. -Author

UR - http://www.scopus.com/inward/record.url?scp=0021571933&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0021571933&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0021571933

VL - 124

SP - 518

EP - 526

JO - American Naturalist

JF - American Naturalist

SN - 0003-0147

IS - 4

ER -