期刊
MITOCHONDRIAL DNA PART A
卷 27, 期 2, 页码 1129-1130出版社
TAYLOR & FRANCIS LTD
DOI: 10.3109/19401736.2014.933333
关键词
Brown alga; mitochondrial genome; Phaeophyceae; Sargassaceae; Sargassum muticum
资金
- 863 Hi-Tech Research and Development Program of China [2012AA10A413]
- National Natural Science Foundation of China [41206146, 41176135]
- Scientific Research Foundation for Outstanding Young Scientists of Shandong Province [BS2013HZ004]
- Key Laboratory of Integrated Marine Monitoring and Applied Technologies for Harmful Algal Blooms, State Oceanic Administration [MATHAB201408]
- Key Laboratory of East China Sea and Oceanic Fishery Resources Exploitation and Utilization, Ministry of Agriculture, P. R. China [K201311]
Sargassum muticum (Yendo) Fensholt is an invasive canopy-forming brown alga, expanding its presence from Northeast Asia to North America and Europe. The complete mitochondrial genome of S. muticum is characterized as a circular molecule of 34,720bp. The overall AT content of S. muticum mitogenome is 63.41%. This mitogenome contains 65 genes typically found in brown algae, including 3 ribosomal RNA genes, 25 transfer RNA genes, 35 protein-coding genes, and 2 conserved open reading frames (ORFs). The gene order of mitogenome for S. muticum is identical to that for Sargassum horneri, Fucus vesiculosus and Desmarestia viridis. Phylogenetic analyses based on 35 protein-coding genes reveal that S. muticum has a close evolutionary relationship with S. horneri and a distant relationship with Dictyota dichotoma, supporting current taxonomic systems. The present investigation provides new molecular data for studies of S. muticum population diversity as well as comparative genomics in the Phaeophyceae.
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