Understanding genetic variation distribution over latitudinal gradients has been a central interest of population genetics in evolutionary biology, molecular ecology, and other related disciplines so that Genetic variation of individuals and genetic differentiation among populations have been caused in history by adaptation to the environment and population processes.

@Alan Josue Rodríguez

First, haploid males and diploid females must be having some morphological variations.

Second, their ploidy level based on the chromosome number can further differentiate these two populations.

Third, the karyotypic analysis can also be helpful.

I am of the opinion that it is easy to determine the genetic diversity when populations under investigation are of different ploidy.