Temporal pattern of loss/persistence of duplicate genes involved in signal transduction and metabolic pathways after teleost-specific genome duplication |
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Authors: | Yukuto Sato Yasuyuki Hashiguchi Mutsumi Nishida |
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Institution: | (1) Division of Molecular Marine Biology, Ocean Research Institute, The University of Tokyo, 1-15-1 Minamidai, Nakano-ku Tokyo, 164-8639, Japan;(2) Division of Population Genetics, National Institute of Genetics, 1111 Yata, Mishima Shizuoka, 411-8540, Japan |
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Abstract: | Background Recent genomic studies have revealed a teleost-specific third-round whole genome duplication (3R-WGD) event occurred in a
common ancestor of teleost fishes. However, it is unclear how the genes duplicated in this event were lost or persisted during
the diversification of teleosts, and therefore, how many of the duplicated genes contribute to the genetic differences among
teleosts. This subject is also important for understanding the process of vertebrate evolution through WGD events. We applied
a comparative evolutionary approach to this question by focusing on the genes involved in long-term potentiation, taste and
olfactory transduction, and the tricarboxylic acid cycle, based on the whole genome sequences of four teleosts; zebrafish,
medaka, stickleback, and green spotted puffer fish. |
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Keywords: | |
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