Significant comparative characteristics between orphan and nonorphan genes in the rice (Oryza sativa L.) genome.
Significant comparative characteristics between orphan and nonorphan genes in the rice (Oryza sativa L.) genome.
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DOI:
10.1155/2007/21676
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发表时间:
2007
影响因子:
--
通讯作者:
Ye SP
中科院分区:
文献类型:
--
作者:
Guo WJ;Li P;Ling J;Ye SP
Microsatellites are short tandem repeats of one to six bases in genomic DNA. As microsatellites are highly polymorphic and play a vital role in gene function and recombination, they are an attractive subject for research in evolution and in the genetics and breeding of animals and plants. Orphan genes have no known homologs in existing databases. Using bioinformatic computation and statistical analysis, we identified 19,26 orphan genes in the rice (Oryza sativa ssp. Japanica cv. Nipponbare) proteome. We found that a larger proportion of orphan genes are expressed after sexual maturation and under environmental pressure than nonorphan genes. Orphan genes generally have shorter protein lengths and intron size, and are faster evolving. Additionally, orphan genes have fewer PROSITE patterns with larger pattern sizes than those in nonorphan genes. The average microsatellite content and the percentage of trinucleotide repeats in orphan genes are also significantly higher than in nonorphan genes. Microsatellites are found less often in PROSITE patterns in orphan genes. Taken together, these orphan gene characteristics suggest that microsatellites play an important role in orphan gene evolution and expression.
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影响因子:
14.9
作者:
BAIROCH, A
通讯作者:
BAIROCH, A
影响因子:
1.5
作者:
Long, MY;Deutsch, M;Zhang, JM
通讯作者:
Zhang, JM
影响因子:
64.8
作者:
Amrani, N;Ganesan, R;Jacobson, A
通讯作者:
Jacobson, A
DOI:
10.1073/pnas.101109298
发表时间:
2001-05-22
影响因子:
11.1
作者:
Nevo, E
通讯作者:
Nevo, E
影响因子:
2.2
作者:
Huang, DX;Yang, QG;Yang, RZ
通讯作者:
Yang, RZ