Hi,
I'm a PhD student and my tutor wants me to be a second author of the most important paper of my thesis. I did a significant amount of work ( clean database, phenotyping, statistical analysis, qtl detection ... ) and because a colleague created the map for the detection of QTLs, she wants him to be the first author of the paper. I don't question the work he did but my question is for my future, is there a significant difference between a second author and a co-author ?
Thanks,
Have a great day.