Full TGIF Record # 77453
Item 1 of 1
Web URL(s):c
    Last checked: 06/2000
Publication Type:
i
Refereed
Author(s):Draper, John; Mur, Luis A. J.; Jenkins, Glyn; Ghosh-Biswas, Gadab C.; Bablak, Pauline; Hasterok, Robert; Routledge, Andrew P. M.
Author Affiliation:Institute of Biological Sciences, Edward Lloyd Building, University of Wales, Aberystwyth, Ceredigion, United Kingdom
Title:Brachypodium distachyon: A new model system for functional genomics in grasses
Section:Research articles
Other records with the "Research articles" Section
Source:Plant Physiology. Vol. 127, No. 4, December 2001, p. 1539-1555.
Publishing Information:Rockville, MD: American Society of Plant Physiologists
# of Pages:17
Keywords:TIC Keywords: Brachypodium; Genomes; Pooideae; Ecotypes; Models; Rusts; Genetics; Transgenic turfgrasses
Abstract/Contents:"A new model for grass functional genomics is described based on Brachypodium distachyon, which in the evolution of the Pooideae diverged just prior to the clade of "core pooid" genera that contain the majority of important temperate cereals and forage grasses. Diploid ecotypes of B. distachyon (2n=10) have five easily distinguishable chromosomes that display high levels of chiasma formation at meiosis. The B. distachyon nuclear genome was indistinguishable in size from that of Arabidopsis, making it the simplest genome described in grasses to date. B. distachyon is a self-fertile, inbreeding annual with a life cycle of less than 4 months. These features, coupled with its small size (approximately 20 cm at maturity), lack of seed-head shatter, and undemanding growth requirements should make it amenable to high-throughput genetics and mutant screens. Immature embryos exhibited a high capacity for plant regeneration via somatic embryogenesis. Regenerated plants display very low levels of albinism and have normal fertility. A simple transformation system has been developed based on microprojectile bombardment of embryogenic callus and hygromycin selection. Selected B. distachyon ecotypes were resistant to all tested cereal-adapted Blumeria graminis species and cereal brown rusts (Puccinia reconditia). In contrast, different ecotypes displayed resistance or disease symptoms following challenge with the rice blast pathogen (Magnaporthe grisea) and wheat/barley yellow stripe rusts (Puccinia striformis). Despite its small stature, B. distachyon has large seeds that should prove useful for studies on grain filling. Such biological characteristics represent important traits for study in temperate cereals."
Language:English
References:71
Note:Pictures, color
Figures
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Draper, J., L. A. J. Mur, G. Jenkins, G. C. Ghosh-Biswas, P. Bablak, R. Hasterok, et al. 2001. Brachypodium distachyon: A new model system for functional genomics in grasses. Plant Physiol. 127(4):p. 1539-1555.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=77453
If there are problems with this record, send us feedback about record 77453.
Choices for finding the above item:
Web URL(s):
c
    Last checked: 06/2000
Find Item @ MSU
MSU catalog number: QK 1 .P68
Find from within TIC:
   Digitally in TIC by record number.
Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)