How can I perform Phylogenetic Principle Component Analysis (pPCA) on my data?

How can I perform Phylogenetic Principle Component Analysis (pPCA) on my data, using phylogenetic trees with branch lengths, using R? I have 22 species with their phylogenetic tree and 14 traits...

07 August 2018 7,224 3 View

How can I measure the residual of the trait values?

I want to compare evolution rate between two set of data (morphological and reproductive traits) because the values of the reproductive traits is very small in compare with morphological traits...

04 May 2017 2,016 2 View

Has anyone got GARLI software, for phylogenetic analysis?

06 July 2016 9,867 0 View

Can any one help me to solve the below error in R (ape)?

03 April 2016 3,181 2 View

Hi everyone, I need to use PGLS, for studying evolution of Platycheirus spp.?

02 March 2016 8,544 2 View

How can I study the evolutionary relationships among a 22 species of insects of the same genus?

hello everyone ! I got a question about trait evolution analysis.I have COI (Cytochrome oxidase I) DNA sequences for all species, and I have excel sheet for all morphological characters for all...

02 March 2016 928 10 View

I need to use R software (ape package) for studying biological evolution of Platycheirus sp. ?

I have the DNA sequence of 20 species, and the data for all characters of these species like (thorax volume, proboscis length, wings and legs length, abdomen length, ........ect), my question is...

01 February 2016 5,708 3 View

How evolution of species behavior are studied through phylogeny of certain species of insects?

I need to study the evolution of insects behavior through phylogeny?

31 December 2015 9,345 0 View

What is the best way for estimating evolution rate between morphological and reproductive characters?

01 January 1970 5,943 6 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

Is it possible for two human neuronal cell lines to have different gene sequence for the same protein?

I am looking at the ATP1A2 (Sodium/Potassium ATPase alpha subunit 2) in two human neuronal cell lines. Expression levels of this protein seems to be almost equal when detected by one antibody....

01 March 2021 3,607 3 View

Where to find data on trees in tropical agroforestry?

Hi, I'm looking for data (mainly related to management: growth rate, canopy size, soil and climate preferences, etc.) about tropical trees used in tropical agroforestry. Have you ever heard about...

28 February 2021 7,356 8 View

Runs of nucleotides in Sanger sequencing?

I performed site directed mutagenesis, transformation, and then I sent out plasmids for Sanger sequencing and found out that there is extension of DNA just before the stop codon. I am not sure...

27 February 2021 547 3 View

Your thoughts on the spherical densiometer to estimate relative species canopy cover?

Hi biologists and biogeomorphologists, I want to characterize vegetation plots on a transect that follows a successionnal gradient from a river bed to a mature forest. Ecologically, I am...

26 February 2021 5,720 2 View

Has anyone used the Illumina ITS1 primer sets?

Hi everyone, Illumina provides a list of primers to amplify with high taxonomic coverage the ITS1 region for further fungal sequencing, but I cannot find the exact amount necessary of each...

25 February 2021 6,969 3 View

Stress/strain tensors decomposition ???

25 February 2021 6,760 1 View

Errors in DNA sequences?

I am trying to better understand the scope of DNA replication and sequencing errors, e.g. 1. I have seen similar error rates of 10e4 to 10e5 for cell & instrumental DNA replication,...

24 February 2021 4,397 3 View

Bayesian decision trees and bayesian regression trees in Python and/or R?

I am looking for implementation of bayesian decision trees and bayesian regression trees in Python and/or R.. Do you know if the existing libraries support this

23 February 2021 6,689 3 View

Can I use FLEXBAR to detect and remove barcodes out of my short reads without demultiplexing ?

Hello, I have demultiplexed my short reads and I have removed the Illumina adapter left in the sequences and now I need to remove the barcodes used by the sequencing centre from my reads. I have...

22 February 2021 9,873 3 View