Microsatellites, or simple sequence repeats (SSRs), are abundant in reptile genomes, with their analysis revealing a wide range of SSR counts across 36 species, making up 2.16%-8.19% of their genome sizes.
The study found a trend where imperfect SSRs were more common than perfect or compound SSRs, and while the total number of SSRs positively correlated with genome size, their frequency and density showed negative correlations.
Different reptile groups showed varying patterns in the distribution of SSR types, with specific repeats predominant in certain species, and the results indicate that genes with perfect SSRs are mainly involved in transcription and translation regulation, highlighting the need for further evolutionary analysis.