Assessing 18S rDNA Diversity of the Chlorophytes among Various Freshwaters of the Central Black Sea Region

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Baytut Ö., GÜRKANLI C. T., Özkoç İ., Gonulol A.

TURKISH JOURNAL OF FISHERIES AND AQUATIC SCIENCES, cilt.13, ss.811-818, 2013 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 13
  • Basım Tarihi: 2013
  • Doi Numarası: 10.4194/1303-2712-v13_5_04
  • Dergi Adı: TURKISH JOURNAL OF FISHERIES AND AQUATIC SCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.811-818
  • Anahtar Kelimeler: Phylogeny, SSU, Chlorophyta, rDNA, MOLECULAR PHYLOGENY
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

In this study, diversity of unicellular chlorophytes isolated from various freshwater habitats in the Central Black Sea Region were assessed by the molecular phylogenetic methods. In order to determine diversity, water samples were collected from freshwater habitats including Cernek Lagoon (Kizilirmak Delta-Samsun), Kurtun Estuary (Samsun), Sarikum Lagoon (Sinop) and a freshwater pond in Boyabat (Sinop). Axenic cultures were obtained with re-streaking the isolates from enrichment cultures on solid growth media. For characterisation of isolates, phylogenetic analyses depending on nucleotide sequences of small subunit of nuclear ribosomal DNA (18S rDNA) was used besides morphological observations. In morphological observations upon closely related unicellular chlorophytes, there were no significant morphological differences among the isolates. As a result of phylogenetic analyses, our isolates were appeared in three distinct lineages which were related with Chlamydomonadaceae (isolates 103I2 and C301), Chlorellaceae (isolate B4Riv) and Scenedesmaceae (isolates SIN-CON and N603) families.