| Autor: |
Morgante CV; Departamento de Genética, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Av. Pádua Dias, 11, C.P. 83, Piracicaba, SP, 13400-970, Brazil., Rodrigues RA, Marbach PA, Borgonovi CM, Moura DS, Silva-Filho MC |
| Jazyk: |
angličtina |
| Zdroj: |
Molecular genetics and genomics : MGG [Mol Genet Genomics] 2009 May; Vol. 281 (5), pp. 525-38. Date of Electronic Publication: 2009 Feb 13. |
| DOI: |
10.1007/s00438-009-0429-7 |
| Abstrakt: |
Gene duplication followed by acquisition of specific targeting information and dual targeting were evolutionary strategies enabling organelles to cope with overlapping functions. We examined the evolutionary trend of dual-targeted single-gene products in Arabidopsis and rice genomes. The number of paralogous proteins encoded by gene families and the dual-targeted orthologous proteins were analysed. The number of dual-targeted proteins and the corresponding gene-family sizes were similar in Arabidopsis and rice irrespective of genome sizes. We show that dual targeting of methionine aminopeptidase, monodehydroascorbate reductase, glutamyl-tRNA synthetase, and tyrosyl-tRNA synthetase was maintained despite occurrence of whole-genome duplications in Arabidopsis and rice as well as a polyploidization followed by a diploidization event (gene loss) in the latter. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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