ORCID Profile
0000-0002-2124-8385
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Publisher: Springer Science and Business Media LLC
Date: 04-2006
DOI: 10.1038/NBT0406-466B
Publisher: Proceedings of the National Academy of Sciences
Date: 19-08-2003
Abstract: We report the complete genome sequence of the model bacterial pathogen Pseudomonas syringae pathovar tomato DC3000 (DC3000), which is pathogenic on tomato and Arabidopsis thaliana . The DC3000 genome (6.5 megabases) contains a circular chromosome and two plasmids, which collectively encode 5,763 ORFs. We identified 298 established and putative virulence genes, including several clusters of genes encoding 31 confirmed and 19 predicted type III secretion system effector proteins. Many of the virulence genes were members of paralogous families and also were proximal to mobile elements, which collectively comprise 7% of the DC3000 genome. The bacterium possesses a large repertoire of transporters for the acquisition of nutrients, particularly sugars, as well as genes implicated in attachment to plant surfaces. Over 12% of the genes are dedicated to regulation, which may reflect the need for rapid adaptation to the erse environments encountered during epiphytic growth and pathogenesis. Comparative analyses confirmed a high degree of similarity with two sequenced pseudomonads, Pseudomonas putida and Pseudomonas aeruginosa , yet revealed 1,159 genes unique to DC3000, of which 811 lack a known function.
Publisher: Springer Science and Business Media LLC
Date: 07-2005
DOI: 10.1038/NBT1110
Publisher: Elsevier BV
Date: 03-2008
DOI: 10.1016/J.ENVPOL.2007.06.021
Abstract: The genetic composition and ersity of Plantago lanceolata L. populations were analysed using lified fragment length polymorphism (AFLP) as well as simple sequence repeat (SSR) markers to test for differences in an old semi-natural grassland after five years of treatment with ambient or elevated ozone (O3) using a free-air fumigation system. Genetic ersity in populations exposed to elevated O3 was slightly higher than in populations s led from control plots. This effect was significant for AFLP-based measures of ersity and for SSR markers based on observed heterozygosity. Also, a small but significant difference in genetic composition between O3 treatments was detected by analysis of molecular variance and redundancy analysis. The results show that micro-evolutionary processes could take place in response to long-term elevated O3 exposure in highly erse populations of outbreeding plant species.
Publisher: Annual Reviews
Date: 29-04-2020
DOI: 10.1146/ANNUREV-ARPLANT-081519-040203
Abstract: Cannabis sativa L. is an important yet controversial plant with a long history of recreational, medicinal, industrial, and agricultural use, and together with its sister genus Humulus, it represents a group of plants with a myriad of academic, agricultural, pharmaceutical, industrial, and social interests. We have performed a meta-analysis of pooled published genomics data, andwe present a comprehensive literature review on the evolutionary history of Cannabis and Humulus, including medicinal and industrial applications. We demonstrate that current Cannabis genome assemblies are incomplete, with ∼10% missing, 10–25% unmapped, and 45S and 5S ribosomal DNA clusters as well as centromeres/satellite sequences not represented. These assemblies are also ordered at a low resolution, and their consensus quality clouds the accurate annotation of complete, partial, and pseudogenized gene copies. Considering the importance of genomics in the development of any crop, this analysis underlines the need for a coordinated effort to quantify the genetic and biochemical ersity of this species.
No related grants have been discovered for David Schneider.