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Journal of Zhejiang University SCIENCE B 2005 Vol.6 No.2 P.87~90


Two ancient rounds of polyploidy in rice genome

Author(s):  ZHANG Yang, XU Guo-hua, GUO Xing-yi, FAN Long-jiang

Affiliation(s):  Institute of Bioinformatics/ZJU-IBM Biocomputational Lab, Zhejiang University, Hangzhou 310029, China; more

Corresponding email(s):   fanlj@zju.edu.cn

Key Words:  Oryza sativa, Polyploidy, Genome evolution, Age distribution of duplicate genes, Monocot-dicot divergence

ZHANG Yang, XU Guo-hua, GUO Xing-yi, FAN Long-jiang. Two ancient rounds of polyploidy in rice genome[J]. Journal of Zhejiang University Science B, 2005, 6(2): 87~90.

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T1 - Two ancient rounds of polyploidy in rice genome
A1 - ZHANG Yang
A1 - XU Guo-hua
A1 - GUO Xing-yi
A1 - FAN Long-jiang
J0 - Journal of Zhejiang University Science B
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SP - 87
EP - 90
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2005.B0087

An ancient genome duplication (PPP1) that predates divergence of the cereals has recently been recognized. We report here another potentially older large-scale duplication (PPP2) event that predates monocot-dicot divergence in the genome of rice (Oryza sativa L.), as inferred from the age distribution of pairs of duplicate genes based on recent genome data for rice. Our results suggest that paleopolyploidy was widespread and played an important role in the evolution of rice.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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