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Titolo:
Closteriopsis acicularis (G. M. Smith) Belcher et Swale is a fusiform algaclosely related to Chlorella kessleri Fott et Novakova (Chlorophyta, Trebouxiophyceae)
Autore:
Ustinova, I; Krienitz, L; Huss, VAR;
Indirizzi:
Univ Erlangen Nurnberg, Inst Bot & Pharmceut Biol, D-91058 Erlangen, Germany Univ Erlangen Nurnberg Erlangen Germany D-91058 -91058 Erlangen, Germany Inst Freshwater Ecol & Inland Fisheries, D-16775 Neuglobsow, Germany Inst Freshwater Ecol & Inland Fisheries Neuglobsow Germany D-16775 rmany
Titolo Testata:
EUROPEAN JOURNAL OF PHYCOLOGY
fascicolo: 4, volume: 36, anno: 2001,
pagine: 341 - 351
SICI:
0967-0262(200111)36:4<341:CA(MSB>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
GROUP-I INTRON; RIBOSOMAL-RNA; PHYLOGENETIC-RELATIONSHIPS; SACCHAROMYCES-CEREVISIAE; CHLAMYDOMONAS-EUGAMETOS; MOLECULAR PHYLOGENY; HORIZONTAL TRANSFER; GENETIC ELEMENTS; INITIATION CODON; GENUS CHLORELLA;
Keywords:
16S rRNA phylogeny; 18S rRNA phylogeny; Chlorella kessleri; Chlorophyceae; chloroplast group I intron; Closteriopsis acicularis; LAGLIDADG homing endonuclease; molecular systematics; Selenastraceae; Trebouxiophyceae;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
59
Recensione:
Indirizzi per estratti:
Indirizzo: Huss, VAR Univ Erlangen Nurnberg, Inst Bot & Pharmceut Biol, Staudtstr 5, D-91058 Erlangen, Germany Univ Erlangen Nurnberg Staudtstr 5 Erlangen Germany D-91058 any
Citazione:
I. Ustinova et al., "Closteriopsis acicularis (G. M. Smith) Belcher et Swale is a fusiform algaclosely related to Chlorella kessleri Fott et Novakova (Chlorophyta, Trebouxiophyceae)", EUR J PHYC, 36(4), 2001, pp. 341-351

Abstract

Complete nuclear 18S rRNA and chloroplast 16S rRNA coding sequences of thefusiform green alga Closteriopsis acicularis (G. M. Smith) Belcher et Swale (Chlorophyta) were used to determine its phylogenetic position within theChlorophyta. Phylogenetic trees inferred from both genes show that C. acicularis is most closely related to Chlorella kessleri Fott et Novakova (Trebouxiophyceae) and does not belong to the family Selenastraceae (Chlorophyceae) as proposed previously. Despite its morphological distinctness, C. acicularis has to be placed close to the genus Chlorella Beijerinck, and especially to C. kessleri. The chloroplast 16S rRNAs of C. acicularis and C, kessleri possess a unique insertion resulting in an additional AT-rich helix ina length-conserved region of the gene. A close relationship to the genus Chlorella is further confirmed by the pyrenoid ultrastructure. The 16S rRNA gene of C. acicularis contains a group I subgroup IA3 intron which is most similar to the first intron in the corresponding gene of Chlamydomonas pallidostigmatica King (Chlorophyta). In helix P6. the intron carries an additional extension related to intron-encoded endonucleases of the LAGLIDADG family. It is the first group I intron reported in chloroplast 16S rDNA of a species other than Chlamydomonas.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/04/20 alle ore 01:35:17