Genome Size Variation and Evolution in Veronica
نویسندگان
چکیده
منابع مشابه
Genome-size evolution in fishes
Fishes possess both the largest and smallest vertebrate genomes, but the evolutionary significance of this variation is unresolved. The present study provides new genome-size estimates for more than 500 species, with a focus on the cartilaginous and ray-finned fishes. These results confirm that genomes are smaller in ray-finned than in cartilaginous fishes, with the exception of polyploids, whi...
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Little information is available on genome size diversity among insects, even in otherwise well-studied groups such as the Lepidoptera. In fact, only six lepidopteran species have been studied to date. The present study therefore represents the first attempt to survey genome size variation in this group, giving estimates for more than 50 species and increasing the coverage of the order to 15 fam...
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In bacteria and archaea, genome size and guanine–cytosine (GC) content are correlated (Bentley and Parkhill, 2004; Musto et al., 2006; Mitchell, 2007; Suzuki et al., 2008; Guo et al., 2009). These parameters show greater correlation in bacteria (Pearson’s correlation coefficient r = 0.46) than in archaea (r = 0.195) (Nishida, 2012a). The GC content in bacteria varies widely from 13.5% in “Candi...
متن کاملGenome size variation in deep-sea amphipods
Genome size varies considerably across taxa, and extensive research effort has gone into understanding whether variation can be explained by differences in key ecological and life-history traits among species. The extreme environmental conditions that characterize the deep sea have been hypothesized to promote large genome sizes in eukaryotes. Here we test this supposition by examining genome s...
متن کاملEvolution of genome size in Brassicaceae.
BACKGROUND AND AIMS Brassicaceae, with nearly 340 genera and more than 3350 species, anchors the low range of angiosperm genome sizes. The relatively narrow range of DNA content (0.16 pg < 1C < 1.95 pg) was maintained in spite of extensive chromosomal change. The aim of this study was to erect a cytological and molecular phylogenetic framework for a selected subset of the Brassicacae, and use t...
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ژورنال
عنوان ژورنال: Annals of Botany
سال: 2004
ISSN: 0305-7364,1095-8290
DOI: 10.1093/aob/mch219