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Gene expression analysis of four conditions for Puccinia graminis f. sp. tritici

ABSTRACT: Puccinia graminis f. sp. tritici is the cause of wheat stem rust. A microarray was designed from genes predicted from the P. graminis f. sp. tritici genome assembly, and gene expression measured for four conditions which include wheat or barley infecting growth stages initiated by urediniospores. mRNA was prepared from fresh urediniospores, uredinospores germinated for 24 hr, wheat seedlings infected with urediniospores for 8 days, and barley seedlings infected with urediniospores for 8 days. The asexual uredinial infection cycle on wheat produces additional urediniospores, which can start new cycles of wheat infection and are readily spread by aerial transport. This expression data is further described in Duplessis et al, Obligate Biotrophy Features Unraveled by the Genomic Analysis of the Rust Fungi, Melampsora larici-populina and Puccinia graminis f. sp. tritici A total of 12 samples were analyzed, including three biological replicates of the four conditions.

ORGANISM(S): Puccinia graminis f. sp. tritici

SUBMITTER: Christina Cuomo 

PROVIDER: E-GEOD-25020 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Obligate biotrophy features unraveled by the genomic analysis of rust fungi.

Duplessis Sébastien S   Cuomo Christina A CA   Lin Yao-Cheng YC   Aerts Andrea A   Tisserant Emilie E   Veneault-Fourrey Claire C   Joly David L DL   Hacquard Stéphane S   Amselem Joëlle J   Cantarel Brandi L BL   Chiu Readman R   Coutinho Pedro M PM   Feau Nicolas N   Field Matthew M   Frey Pascal P   Gelhaye Eric E   Goldberg Jonathan J   Grabherr Manfred G MG   Kodira Chinnappa D CD   Kohler Annegret A   Kües Ursula U   Lindquist Erika A EA   Lucas Susan M SM   Mago Rohit R   Mauceli Evan E   Morin Emmanuelle E   Murat Claude C   Pangilinan Jasmyn L JL   Park Robert R   Pearson Matthew M   Quesneville Hadi H   Rouhier Nicolas N   Sakthikumar Sharadha S   Salamov Asaf A AA   Schmutz Jeremy J   Selles Benjamin B   Shapiro Harris H   Tanguay Philippe P   Tuskan Gerald A GA   Henrissat Bernard B   Van de Peer Yves Y   Rouzé Pierre P   Ellis Jeffrey G JG   Dodds Peter N PN   Schein Jacqueline E JE   Zhong Shaobin S   Hamelin Richard C RC   Grigoriev Igor V IV   Szabo Les J LJ   Martin Francis F  

Proceedings of the National Academy of Sciences of the United States of America 20110502 22

Rust fungi are some of the most devastating pathogens of crop plants. They are obligate biotrophs, which extract nutrients only from living plant tissues and cannot grow apart from their hosts. Their lifestyle has slowed the dissection of molecular mechanisms underlying host invasion and avoidance or suppression of plant innate immunity. We sequenced the 101-Mb genome of Melampsora larici-populina, the causal agent of poplar leaf rust, and the 89-Mb genome of Puccinia graminis f. sp. tritici, th  ...[more]

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