# Diversity and Evolution of Frog Visual Opsins: Spectral Tuning and Adaptation to Distinct Light Environments

*PRI Rank #15 · Topics and Trends in Most Cited Amphibian and Reptile Biology Papers, Class of 2026*

*Canonical URL: https://pri.pepkio.com/top-papers/amphibian-and-reptile-biology/2026/rank-15*

| Field | Value |
| --- | --- |
| Rank | #15 |
| 18m citations | 16 |
| Journal | Molecular Biology and Evolution |
| Year | 2024 |
| DOI | 10.1093/molbev/msae049 |
| Corresponding authors | Ryan K Schott |
| Institution | York University, Canada |

**Ranking page:** [Topics and Trends in Most Cited Amphibian and Reptile Biology Papers, Class of 2026](https://pri.pepkio.com/top-papers/amphibian-and-reptile-biology/2026)

**Paper link:** [10.1093/molbev/msae049](https://doi.org/10.1093/molbev/msae049)

## Topics

visual opsins · spectral tuning · spectral sensitivity · retinal photoreceptors · visual pigments · gene duplication and loss · differential expression · coexpression · sequence evolution · eye transcriptomes · positive selection · selective pressures · habitat-associated shifts · life history adaptation · microspectrophotometry · Spectral tuning sites · Biphasic life history · photoreceptor physiology · vertebrate visual evolution · frog visual system diversity

## Cite this ranking

```
Pepkio Research Index (PRI). Topics and Trends in Most Cited Amphibian and Reptile Biology Papers, Class of 2026. https://pri.pepkio.com/top-papers/amphibian-and-reptile-biology/2026. Accessed 2026-07-22.

Zheng Su, Tinsley Li, Thematic Shifts in Early-High-Impact Cancer Genomics and Diagnostics Research: A Bibliometric and Semantic Analysis. bioRxiv 2026.07.04.736459; doi: https://doi.org/10.64898/2026.07.04.736459
```