Spatial structure of genetic variation in a population of the endangered plant Cerastium fischerianum var. molle (Caryophyllaceae)

Masayuki Maki, Tetsukazu Yahara

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The spatial genetic structure within a population of an endangered plant, Cerastium fischerianum var. molle, was examined using spatial autocorrelation analysis. All individuals in 22 x 15 m area in a population were mapped and genotyped by three allozyme loci. Many spatial autocorrelation indices (Moran's I) were significantly larger than the expected values and their averages across three marker loci examined were positive in the short distance classes and the opposite pattern was shown in the larger distance classes, suggesting that individuals located nearly each other tend to have similar genotypes and pairs of individuals located far from each other tend to have different genotypes. Because the marker loci are considered to be neutral and the linkage disequilibria were not detected, the spatial genetic structure observed in this study seems to result from the restricted gene flow because of predominant selfing of C. fischerianum var. molle.

Original languageEnglish
Pages (from-to)239-242
Number of pages4
JournalGenes and Genetic Systems
Volume72
Issue number4
DOIs
Publication statusPublished - Aug 1 1997

Fingerprint

Caryophyllaceae
Cerastium
Spatial Analysis
Autocorrelation
endangered species
Genetic Structures
autocorrelation
genetic variation
loci
Genotype
Population
Isoenzymes
Gene Flow
Genes
genotype
Linkage Disequilibrium
linkage disequilibrium
selfing
allozymes
gene flow

All Science Journal Classification (ASJC) codes

  • Molecular Biology
  • Genetics

Cite this

@article{04d020b1758a4bb788d02d748ecc768d,
title = "Spatial structure of genetic variation in a population of the endangered plant Cerastium fischerianum var. molle (Caryophyllaceae)",
abstract = "The spatial genetic structure within a population of an endangered plant, Cerastium fischerianum var. molle, was examined using spatial autocorrelation analysis. All individuals in 22 x 15 m area in a population were mapped and genotyped by three allozyme loci. Many spatial autocorrelation indices (Moran's I) were significantly larger than the expected values and their averages across three marker loci examined were positive in the short distance classes and the opposite pattern was shown in the larger distance classes, suggesting that individuals located nearly each other tend to have similar genotypes and pairs of individuals located far from each other tend to have different genotypes. Because the marker loci are considered to be neutral and the linkage disequilibria were not detected, the spatial genetic structure observed in this study seems to result from the restricted gene flow because of predominant selfing of C. fischerianum var. molle.",
author = "Masayuki Maki and Tetsukazu Yahara",
year = "1997",
month = "8",
day = "1",
doi = "10.1266/ggs.72.239",
language = "English",
volume = "72",
pages = "239--242",
journal = "Genes and Genetic Systems",
issn = "1341-7568",
publisher = "The Genetics Society of Japan",
number = "4",

}

TY - JOUR

T1 - Spatial structure of genetic variation in a population of the endangered plant Cerastium fischerianum var. molle (Caryophyllaceae)

AU - Maki, Masayuki

AU - Yahara, Tetsukazu

PY - 1997/8/1

Y1 - 1997/8/1

N2 - The spatial genetic structure within a population of an endangered plant, Cerastium fischerianum var. molle, was examined using spatial autocorrelation analysis. All individuals in 22 x 15 m area in a population were mapped and genotyped by three allozyme loci. Many spatial autocorrelation indices (Moran's I) were significantly larger than the expected values and their averages across three marker loci examined were positive in the short distance classes and the opposite pattern was shown in the larger distance classes, suggesting that individuals located nearly each other tend to have similar genotypes and pairs of individuals located far from each other tend to have different genotypes. Because the marker loci are considered to be neutral and the linkage disequilibria were not detected, the spatial genetic structure observed in this study seems to result from the restricted gene flow because of predominant selfing of C. fischerianum var. molle.

AB - The spatial genetic structure within a population of an endangered plant, Cerastium fischerianum var. molle, was examined using spatial autocorrelation analysis. All individuals in 22 x 15 m area in a population were mapped and genotyped by three allozyme loci. Many spatial autocorrelation indices (Moran's I) were significantly larger than the expected values and their averages across three marker loci examined were positive in the short distance classes and the opposite pattern was shown in the larger distance classes, suggesting that individuals located nearly each other tend to have similar genotypes and pairs of individuals located far from each other tend to have different genotypes. Because the marker loci are considered to be neutral and the linkage disequilibria were not detected, the spatial genetic structure observed in this study seems to result from the restricted gene flow because of predominant selfing of C. fischerianum var. molle.

UR - http://www.scopus.com/inward/record.url?scp=0030859766&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030859766&partnerID=8YFLogxK

U2 - 10.1266/ggs.72.239

DO - 10.1266/ggs.72.239

M3 - Article

AN - SCOPUS:0030859766

VL - 72

SP - 239

EP - 242

JO - Genes and Genetic Systems

JF - Genes and Genetic Systems

SN - 1341-7568

IS - 4

ER -