遗传图绘制：
遗传图绘制代码演示
代码参考：https://cran.r-project.org/web/packages/LinkageMapView/vignettes/LinkageMapView.html
library(LinkageMapView)
#示例数据
data(carrot)
head(carrot)
carrot=carrot[order(carrot$group),]
outfile="genetic_map_ruler.pdf"
lmv.linkage.plot(carrot,outfile,ruler = TRUE,lg.col = "lightblue1")
outfile="genetic_map_noruler.pdf"
lmv.linkage.plot(carrot,outfile,ruler = F,lg.col = "lightblue1")
## draw tickmarks at each cM from 0 to largest position of linkage groups to be drawn
maxpos <- floor(max(carrot$position))
at.axis <- seq(0, maxpos)
## put labels on ruler at every 10 cM
axlab <- vector()
for (lab in 0:maxpos) {
if (!lab %% 10) {
axlab <- c(axlab, lab)
}
else {
axlab <- c(axlab, NA)
}
}
outfile="genetic_map.pdf"
lmv.linkage.plot(carrot,outfile,denmap=TRUE, cex.axis = 1, at.axis = at.axis, labels.axis = axlab)
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- 发表于 2024-02-22 15:59
- 阅读 ( 793 )
- 分类：遗传进化
