Quantification and characterization of nuclear genomes in commercial red seaweeds: Gracilariales and Gelidiales

Nuclear genome profiles were developed for representative species of the Gelidiales and Gracilariales using information from present and previous studies of cytogenetics, cytophotometry and DNA reassociation kinetics. Results indicate that species of Gracilaria and Gracilariopsis are characterized b...

Full description

Saved in:
Bibliographic Details
Published in:Hydrobiologia 1993-06, Vol.260 (1), p.679-688
Main Authors: Kapraun, D.F. (North Carolina Univ., Wilmington, NC (USA). Center for Marine Science Research), Dutcher, J.A, Freshwater, D.W
Format: Article
Language:English
Subjects:
CHROMOSOME
CHROMOSOMES
CITOGENETICA
CROMOSOMAS
CULTIVO DE ALGAS
CULTURE D'ALGUES
CYTOGENETICS
CYTOGENETIQUE
GELIDIELLA
GRACILARIA
Gracilariopsis
Marine
SEAWEED CULTURE
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Nuclear genome profiles were developed for representative species of the Gelidiales and Gracilariales using information from present and previous studies of cytogenetics, cytophotometry and DNA reassociation kinetics. Results indicate that species of Gracilaria and Gracilariopsis are characterized by distinct chromosome complements of n = 24 and n = 32, respectively, a narrow range of small genome sizes (2C = 0.35-0.45 pg) and a wide range of values for repeated and unique genome sequences. In contrast, the Gelidiales investigated are characterized by a wide range of chromosome complements, n = 6-29, a wider range of genome sizes (2C = 0.42-0.68 pg) and a large proportion of unique genome sequences. Nuclear genome sizes for species of the Gelidiales and Gracilariales are compared with estimates of other red algal orders including the Bangiales, Ceramiales and Gigartinales.
ISSN:0018-8158
1573-5117
DOI:10.1007/BF00049088