In science, "index" is used as a number to retrieve information you actually care about from a collection of data.
I've used "metrics" in the past to refer to values calculated from massively parallel sequencing data, and I think that would be understood by others in your field. However, I think in formal publication I wouldmight use statistics or "descriptive statistics".
All of these descriptive statistics of genetic diversity ...
or maybe:
All of these statistics describing genetic diversity ...
It doesn't exactly roll off the tongue, but it would not be contested by a scientific editor or reviewer. In my experience, "metrics" would also not be contested, and I would use it myself, but I have no reference supporting this usage of it.