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Genome-Wide Identification and Analysis of the Cryptochrome/Photolyase Family in the Brown Alga Saccharina japonica
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Genome-Wide Identification and Analysis of the Cryptochrome/Photolyase Family in the Brown Alga Saccharina japonica
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Genome-Wide Identification and Analysis of the Cryptochrome/Photolyase Family in the Brown Alga Saccharina japonica
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Journal Article
Genome-Wide Identification and Analysis of the Cryptochrome/Photolyase Family in the Brown Alga Saccharina japonica
2023
Overview
The cryptochrome/photolyase family (CPF) is an extensively distributed and highly conserved gene family. These include photolyases, which repair UV (Ultraviolet) induced DNA damage, and cryptochromes, which serve as blue-light receptors in terrestrial plants. This study focused on the CPF members of the economically valuable brown alga Saccharina japonica and traced the evolutionary relationships and distribution of CPF members in a variety of algae. Six distinct CPF members were discovered in the genomes of S. japonica and Undaria pinnatifida. For the phylogenetic analysis, 94 CPF members were collected and identified from 24 additional different species. The phylogenetic analysis disclosed that the CPF family consisted of five main branches. It is worth mentioning that CPF members of Ectocarpus siliculosus and U. pinnatifida consisted of two types that evolved from both (6–4) pyrimidine-pyrimidone adduct [(6–4) photoproduct] photolyase [(6–4) photolyase] and cyclobutane pyrimidine dimer type II (CPD type II) photolyase. The members of the CPF identified in S. japonica evolved exclusively from CPD type II photolyase. The Sj Cryptochrome-DASH1 (CRY-DASH1) and Sj CPD genes have distinctly differential expression patterns under various light quality conditions. Protein–protein interactions may be utilized by Sj CPF members to regulate downstream Timeless genes. Nonetheless, this requires additional experimental confirmation. These findings shed new light on the functional and regulatory pathways of CPFs in algae.
