Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2024 Dec 19;17(1):evae274. doi: 10.1093/gbe/evae274

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2024. Published by Oxford University Press on behalf of Society for Molecular Biology and Evolution.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

Fig. 5. — Model of convergent evolution in limbless reptiles: snakes and the worm lizard. The phylogenetic tree shows relationships of lepidosaurs investigated in this study and divergence times (Ma) (Kumar et al. 2022) of the corresponding lineages. In both the worm lizard and snakes, limbs and claws have been lost. Xs on the branches indicate the loss of at least two genes of the following groups: type I claw keratins (orthologs of mammalian hair keratin KRT36), type II claw keratins (orthologs of mammalian hair keratin KRT84), and EDC genes (EDYM1 and EDCC). Species: worm lizard (R. floridana), wall lizard (P. muralis), snake (T. elegans), anole lizard (A. carolinensis), gecko (G. japonicus), and tuatara (Sphenodon punctatus).