{"doi":"10.1073/pnas.2002235117","title":"Convergent spectral shifts to blue-green vision in mammals extends the known sensitivity of vertebrate M/LWS pigments","abstract":"Daylight vision in most mammals is mediated predominantly by a middle/long wavelength-sensitive (M/LWS) pigment. Although spectral sensitivity and associated shifts in M/LWS are mainly determined by five critical sites, predicted phenotypic variation is rarely validated, and its ecological significance is unclear. We experimentally determine spectral tuning of M/LWS pigments and show that two highly divergent taxa, the gerbil and the elephant-shrew, have undergone independent dramatic blue-green shifts to 490 nm. By generating mutant proteins, we identify additional critical sites contributing to these shifts. Our results, which extend the known range of spectral tuning of vertebrate M/LWS, provide a compelling case of functional convergence, likely related to parallel adaptive shifts from nocturnal to brighter light conditions in similar habitats.","journal":"Proceedings of the National Academy of Sciences","year":2020,"id":86173,"datarank":0.513765338899145,"base_score":2.70805020110221,"endowment":2.70805020110221,"self_citation_contribution":0.40620753016533157,"citation_network_contribution":0.10755780873381349,"self_endowment_contribution":0.40620753016533157,"citer_contribution":0.10755780873381349,"corpus_percentile":null,"corpus_rank":null,"citation_count":14,"citer_count":8,"citers_with_citation_signal":7,"citers_with_endowment":7,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9471,"is_data_producer":true,"deposit_databanks":{"GENBANK":["MT024768","MT024769"]},"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2020-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":440823,"name":"Yimeng Cui","orcid":null,"position":1,"is_corresponding":false},{"id":439739,"name":"Stephen J. Rossiter","orcid":"0000-0002-3881-4515","position":2,"is_corresponding":false},{"id":424701,"name":"Yang Liu","orcid":"0000-0002-9258-7237","position":3,"is_corresponding":false},{"id":439738,"name":"Hai Chi","orcid":"0009-0000-6784-4812","position":0,"is_corresponding":true}],"reference_count":13,"raw_metadata":null,"created_at":"2026-07-18T21:58:41.997408Z","pmid":"32241894","pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}