Quantification and characterization of nuclear genomes in commercial red seaweeds: Gracilariales and Gelidiales |
| |
Authors: | Kapraun Donald F Dutcher Julie A Freshwater D Wilson |
| |
Institution: | (1) Center for Marine Science Research, University of North Carolina, 7205 Wrightsville Avenue, 28403 Wilmington, NC, USA |
| |
Abstract: | 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. |
| |
Keywords: | chromosomes cytogenetics Gracilariales Gelidiales nuclear genome reassociation kinetics |
本文献已被 SpringerLink 等数据库收录! |
|