TY  - JOUR
A1  - Cheng, Shifeng
A1  - van den Bergh, Erik
A1  - Zeng, Peng
A1  - Zhong, Xiao
A1  - Xu, Jiajia
A1  - Liu, Xin
A1  - Hofberger, Johannes
A1  - de Bruijn, Suzanne
A1  - Bhide, Amey S.
A1  - Kuelahoglu, Canan
A1  - Bian, Chao
A1  - Chen, Jing
A1  - Fan, Guangyi
A1  - Kaufmann, Kerstin
A1  - Hall, Jocelyn C.
A1  - Becker, Annette
A1  - Bräutigam, Andrea
A1  - Weber, Andreas P. M.
A1  - Shi, Chengcheng
A1  - Zheng, Zhijun
A1  - Li, Wujiao
A1  - Lv, Mingju
A1  - Tao, Yimin
A1  - Wang, Junyi
A1  - Zou, Hongfeng
A1  - Quan, Zhiwu
A1  - Hibberd, Julian M.
A1  - Zhang, Gengyun
A1  - Zhu, Xin-Guang
A1  - Xu, Xun
A1  - Schranz, M. Eric
T1  - The Tarenaya hassleriana Genome Provides insight Into Reproductive Trait and Genome Evolution of Crucifers
JF  - The plant cell
N2  - The Brassicaceae, including Arabidopsis thaliana and Brassica crops, is unmatched among plants in its wealth of genomic and functional molecular data and has long served as a model for understanding gene, genome, and trait evolution. However, genome information from a phylogenetic outgroup that is essential for inferring directionality of evolutionary change has been lacking. We therefore sequenced the genome of the spider flower (Tarenaya hassleriana) from the Brassicaceae sister family, the Cleomaceae. By comparative analysis of the two lineages, we show that genome evolution following ancient polyploidy and gene duplication events affect reproductively important traits. We found an ancient genome triplication in Tarenaya (Th-alpha) that is independent of the Brassicaceae-specific duplication (At-alpha) and nested Brassica (Br-a) triplication. To showcase the potential of sister lineage genome analysis, we investigated the state of floral developmental genes and show Brassica retains twice as many floral MADS (for MINICHROMOSOME MAINTENANCE1, AGAMOUS, DEFICIENS and SERUM RESPONSE FACTOR) genes as Tarenaya that likely contribute to morphological diversity in Brassica. We also performed synteny analysis of gene families that confer self-incompatibility in Brassicaceae and found that the critical SERINE RECEPTOR KINASE receptor gene is derived from a lineage-specific tandem duplication. The T. hassleriana genome will facilitate future research toward elucidating the evolutionary history of Brassicaceae genomes.
Y1  - 2013
U6  - https://doi.org/10.1105/tpc.113.113480
SN  - 1040-4651
VL  - 25
IS  - 8
SP  - 2813
EP  - 2830
PB  - American Society of Plant Physiologists
CY  - Rockville
ER  - 
TY  - JOUR
A1  - Weber, Andreas P. M.
A1  - Oesterhelt, Christine
A1  - Gross, Wolfgang
A1  - Bräutigam, Andrea
A1  - Imboden, Lori
A1  - Krassovskaya, Inga
A1  - Linka, Nicole
A1  - Truchina, Julia
A1  - Schneidereit, Jörg
A1  - Voll, Lars
A1  - Zimmermann, Marc
A1  - Jamai, Aziz
A1  - Riekhof, Wayne
A1  - Yu, Bin
A1  - Garavito, Michael R.
A1  - Benning, Christoph
T1  - EST-analysis of the thermo-acidophilic red microalga Galdieria sulphuraria reveals potential for lipid A biosynthesis and unveils the pathway of carbon export from rhodoplasts
N2  - When we think of extremophiles, organisms adapted to extreme environments, prokaryotes come to mind first. However, the unicellular red micro-alga Galdieria sulphuraria (Cyanidiales) is a eukaryote that can represent up to 90% of the biomass in extreme habitats such as hot sulfur springs with pH values of 0-4 and temperatures of up to 56 degreesC. This red alga thrives autotrophically as well as heterotrophically on more than 50 different carbon sources, including a number of rare sugars and sugar alcohols. This biochemical versatility suggests a large repertoire of metabolic enzymes, rivaled by few organisms and a potentially rich source of thermo-stable enzymes for biotechnology. The temperatures under which this organism carries out photosynthesis are at the high end of the range for this process, making G. sulphuraria a valuable model for physical studies on the photosynthetic apparatus. In addition, the gene sequences of this living fossil reveal much about the evolution of modern eukaryotes. Finally, the alga tolerates high concentrations of toxic metal ions such as cadmium, mercury, aluminum, and nickel, suggesting potential application in bioremediation. To begin to explore the unique biology of G. sulphuraria, 5270 expressed sequence tags from two different cDNA libraries have been sequenced and annotated. Particular emphasis has been placed on the reconstruction of metabolic pathways present in this organism. For example, we provide evidence for (i) a complete pathway for lipid A biosynthesis; (ii) export of triose-phosphates from rhodoplasts; (iii) and absence of eukaryotic hexokinases. Sequence data and additional information are available at http://genomics.msu.edu/galdieria
Y1  - 2004
ER  -