Abstract:
:Protein sequences were compared among Arabidopsis, Oryza and Populus to identify differential gene (DG) sets that are in one but not the other two genomes. The DG sets were screened against a plant transcript database, the NR protein database and six newly-sequenced genomes (Carica, Glycine, Medicago, Sorghum, Vitis and Zea) to identify a set of species-specific genes (SS). Gene expression, protein motif and intron number were examined. 165, 638 and 109 SS genes were identified in Arabidopsis, Oryza and Populus, respectively. Some SS genes were preferentially expressed in flowers, roots, xylem and cambium or up-regulated by stress. Six conserved motifs in Arabidopsis and OryzaSS proteins were found in other distant lineages. The SS gene sets were enriched with intronless genes. The results reflect functional and/or anatomical differences between monocots and eudicots or between herbaceous and woody plants. The Populus-specific genes are candidates for carbon sequestration and biofuel research.
journal_name
Genomicsjournal_title
Genomicsauthors
Yang X,Jawdy S,Tschaplinski TJ,Tuskan GAdoi
10.1016/j.ygeno.2009.01.002subject
Has Abstractpub_date
2009-05-01 00:00:00pages
473-80issue
5eissn
0888-7543issn
1089-8646pii
S0888-7543(09)00008-1journal_volume
93pub_type
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