Volume 39 Issue 10
Oct.  2020
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Jian Zhang, Xiaowen Zhang, Wentao Han, Xiao Fan, Yitao Wang, Dong Xu, Yan Zhang, Jian Ma, Chengwei Liang, Naihao Ye. Identification of genes under positive selection reveals evolutionary adaptation of Ulva mutabilis[J]. Acta Oceanologica Sinica, 2020, 39(10): 35-41. doi: 10.1007/s13131-020-1658-1
Citation: Jian Zhang, Xiaowen Zhang, Wentao Han, Xiao Fan, Yitao Wang, Dong Xu, Yan Zhang, Jian Ma, Chengwei Liang, Naihao Ye. Identification of genes under positive selection reveals evolutionary adaptation of Ulva mutabilis[J]. Acta Oceanologica Sinica, 2020, 39(10): 35-41. doi: 10.1007/s13131-020-1658-1

Identification of genes under positive selection reveals evolutionary adaptation of Ulva mutabilis

doi: 10.1007/s13131-020-1658-1
Funds:  The National Key Research and Development Program of China under contract No. 2016YFC1402102; the Central Public-interest Scientific Institution Basal Research Fund, CAFS under contract Nos 2020TD19 and 2020TD27; the Major Scientific and Technological Innovation Project of Shandong Provincial Key Research and Development Program under contract No. 2019JZZY020706; the National Natural Science Foundation of China under contract No. 31770393; the Earmarked Fund for China Agriculture Research System under contract No. CARS-50; the Taishan Scholars Funding of Shandong Province.
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  • Corresponding author: E-mail: liangchw117@126.comyenh@ysfri.ac.cn
  • Received Date: 2019-09-05
  • Accepted Date: 2020-04-20
  • Available Online: 2020-12-28
  • Publish Date: 2020-10-25
  • Ulvophytes are attractive model systems for understanding the evolution of growth, development, and environmental stress responses. They are untapped resources for food, fuel, and high-value compounds. The rapid and abundant growth of Ulva species makes them key contributors to coastal biogeochemical cycles, which can cause significant environmental problems in the form of green tides and biofouling. Until now, the Ulva mutabilis genome is the only Ulva genome to have been sequenced. To obtain further insights into the evolutionary forces driving divergence in Ulva species, we analyzed 3 905 single copy ortholog family from U. mutabilis, Chlamydomonas reinhardtii and Volvox carteri to identify genes under positive selection (GUPS) in U. mutabilis. We detected 63 orthologs in U. mutabilis that were considered to be under positive selection. Functional analyses revealed that several adaptive modifications in photosynthesis, amino acid and protein synthesis, signal transduction and stress-related processes might explain why this alga has evolved the ability to grow very rapidly and cope with the variable coastal ecosystem environments.
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