NDLI: Complete Sequences of the Mitochondrial DNA of the Wild Gracilariopsis lemaneiformis and Two Mutagenic Cultivated Breeds (Gracilariaceae, Rhodophyta)

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Complete Sequences of the Mitochondrial DNA of the Wild Gracilariopsis lemaneiformis and Two Mutagenic Cultivated Breeds (Gracilariaceae, Rhodophyta)

Content Provider	Semantic Scholar
Author	Zhang, Lei Wang, Xumin Qian, Hao Chi, Shan
Copyright Year	2012
Abstract	The complete mitochondrial DNA (mtDNA) of Gracilariopsis lemaneiformis was sequenced (25883 bp) and mapped to a circular model. The A+T composition was 72.5%. Forty six genes and two potentially functional open reading frames were identified. They include 24 protein-coding genes, 2 rRNA genes, 20 tRNA genes and 2 ORFs (orf60, orf142). There is considerable sequence synteny across the five red algal mtDNAs falling into Florideophyceae including Gr. lemaneiformis in this study and previously sequenced species. A long stem-loop and a hairpin structure were identified in intergenic regions of mt genome of Gr. lemaneiformis, which are believed to be involved with transcription and replication. In addition, the mtDNAs of two mutagenic cultivated breeds ("981" and "07-2") were also sequenced. Compared with the mtDNA of wild Gr. lemaneiformis, the genome size and gene length and order of three strains were completely identical except nine base mutations including eight in the protein-coding genes and one in the tRNA gene. None of the base mutations caused frameshift or a premature stop codon in the mtDNA genes. Phylogenetic analyses based on mitochondrial protein-coding genes and rRNA genes demonstrated Gracilariopsis andersonii had closer phylogenetic relationship with its parasite Gracilariophila oryzoides than Gracilariopsis lemaneiformis which was from the same genus of Gracilariopsis.
File Format	PDF HTM / HTML
DOI	10.1371/journal.pone.0040241
PubMed reference number	22768261
Journal	Medline
Volume Number	7
Alternate Webpage(s)	http://ftp.ncbi.nlm.nih.gov/pub/pmc/b9/63/pone.0040241.PMC3386957.pdf
Alternate Webpage(s)	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0040241&type=printable
Alternate Webpage(s)	https://doi.org/10.1371/journal.pone.0040241
Journal	PloS one
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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