Phylogenetic analyses and reclassification of the oleaginous marine species Nannochloris sp. "desiccata" (Trebouxiophyceae, Chlorophyta), formerly Chlorella desiccata, supported by a high-quality genome assembly

© 2022 Phycological Society of America.

Bibliographische Detailangaben
Veröffentlicht in:Journal of phycology. - 1966. - 58(2022), 3 vom: 01. Juni, Seite 436-448
1. Verfasser: Sanders, Claire K (VerfasserIn)
Weitere Verfasser: Hanschen, Erik R, Biondi, Thomas C, Hovde, Blake T, Kunde, Yuliya A, Eng, Wyatt L, Kwon, Taehyung, Dale, Taraka
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Journal of phycology
Schlagworte:Letter Research Support, U.S. Gov't, Non-P.H.S. Chlorella Nannochloris Chlorophyta algae cryptic species microalgae morphology phylogeny mehr... salinity taxonomy RNA, Ribosomal, 18S
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100 1 |a Sanders, Claire K  |e verfasserin  |4 aut 
245 1 0 |a Phylogenetic analyses and reclassification of the oleaginous marine species Nannochloris sp. "desiccata" (Trebouxiophyceae, Chlorophyta), formerly Chlorella desiccata, supported by a high-quality genome assembly 
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520 |a Microalgae are diverse, with many gaps remaining in phylogenetic and physiological understanding. Thus, studying new microalgae species increases our broader comprehension of biological diversity, and evaluation of new candidates as algal production platforms can lead to improved productivity under a variety of cultivation conditions. Chlorella is a genus of fast-growing species often isolated from freshwater habitats and cultivated as a source of nutritional supplements. However, the use of freshwater increases competition with other freshwater needs. We identified Chlorella desiccata to be worthy of further investigation as a potential algae production strain, due to its isolation from a marine environment and its promising growth and biochemical composition properties. Long-read genomic sequencing was conducted for C. desiccata UTEX 2526, resulting in a high-quality, near chromosome level, diploid genome with an assembly length of 21.55 Mbp in only 18 contigs. We also report complete circular mitochondrial and chloroplast genomes. Phylogenomic and phylogenetic analyses using nuclear, chloroplast, 18S rRNA, and actin sequences revealed that this species clades within strains currently identified as Nannochloris (Trebouxiophyceae, Chlorophyta), leading to its reclassification as Nannochloris sp. "desiccata" UTEX 2526. The mode of cell division for this species is autosporulation, differing from the type species N. bacillaris. As has occurred across multiple microalgae genera, there are repeated examples of Nannochloris species reclassification in the literature. This high-quality genome assembly and phylogenetic analysis of the potential algal production strain Nannochloris sp. "desiccata" UTEX 2526 provides an important reference and useful tool for further studying this region of the phylogenetic tree 
650 4 |a Letter 
650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
650 4 |a Chlorella 
650 4 |a Nannochloris 
650 4 |a Chlorophyta 
650 4 |a algae 
650 4 |a cryptic species 
650 4 |a microalgae 
650 4 |a morphology 
650 4 |a phylogeny 
650 4 |a salinity 
650 4 |a taxonomy 
650 7 |a RNA, Ribosomal, 18S  |2 NLM 
700 1 |a Hanschen, Erik R  |e verfasserin  |4 aut 
700 1 |a Biondi, Thomas C  |e verfasserin  |4 aut 
700 1 |a Hovde, Blake T  |e verfasserin  |4 aut 
700 1 |a Kunde, Yuliya A  |e verfasserin  |4 aut 
700 1 |a Eng, Wyatt L  |e verfasserin  |4 aut 
700 1 |a Kwon, Taehyung  |e verfasserin  |4 aut 
700 1 |a Dale, Taraka  |e verfasserin  |4 aut 
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773 1 8 |g volume:58  |g year:2022  |g number:3  |g day:01  |g month:06  |g pages:436-448 
856 4 0 |u http://dx.doi.org/10.1111/jpy.13242  |3 Volltext 
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