If you can do it in R console, you can do it R-studio, Look into the details here 

1) http://www.springer.com/de/book/9781461417422

2) https://www.r-phylo.org/wiki/HowTo_UsefulLinks

3) https://www.r-bloggers.com/r-for-ecologists-phylogenies-in-r/

4) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3035803/

Focus on general usage of R and spend time with it, along with R-blogger updates.

Here is another useful website, which walks you through PGLS: https://lukejharmon.github.io/ilhabela/instruction/2015/07/03/PGLS/

Thank you Abhisek sir n Jacob sir...

You are very welcome.

Here is a nice blog post using phangorn:

www.molecularecologist.com/2016/02/quick-and-dirty-tree-building-in-r/

phangorn also has several vignettes, the one you are most interested is called "Trees.pdf". You can open it in R typing:

vignette("Trees", package = "phangorn")

Dear Mr Klaus actually the problem is I have a aligned sequence in .clustal format...How can I construct the phylogenetic tree from rstudio...Please help me with the steps...

Have you tried read.phyDat("yourData", format="clustal") ?

thanks Klaus sir...its working...plz guide me with the commands to draw different phylogenetic trees from newick format???

http://adegenet.r-forge.r-project.org/files/MSc-intro-phylo.1.1.pdf

How to construct phylogenetic tree with maximum likelihood in rstudio?