The lipoxygenase gene family: a genomic fossil of shared polyploidy between Glycine max and Medicago truncatula |
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| Authors: | Jin Hee Shin,Kyujung Van,Dong Hyun Kim,Kyung Do Kim,Young Eun Jang,Beom-Soon Choi,Moon Young Kim,Suk-Ha Lee |
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| Affiliation: | (1) Department of Plant Science, Seoul National University, Seoul, 151-921, Korea;(2) National Instrumentation Center for Environmental Management, Seoul National University, Seoul, 151-921, Korea;(3) Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, 151-921, Korea;(4) Plant Genomic and Breeding Research Institute, Seoul National University, Seoul, 151-921, Korea |
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| Abstract: | ![]()
Background Soybean lipoxygenases (Lxs) play important roles in plant resistance and in conferring the distinct bean flavor. Lxs comprise a multi-gene family that includes GmLx1, GmLx2 and GmLx3, and many of these genes have been characterized. We were interested in investigating the relationship between the soybean lipoxygenase isozymes from an evolutionary perspective, since soybean has undergone two rounds of polyploidy. Here we report the tetrad genome structure of soybean Lx regions produced by ancient and recent polyploidy. Also, comparative genomics with Medicago truncatula was performed to estimate Lxs in the common ancestor of soybean and Medicago. |
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