caa a22 4500 445845600 CHVBK 20180317145358.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s10709-011-9604-y doi (NATIONALLICENCE)springer-10.1007/s10709-011-9604-y Comparative analysis of evolutionary dynamics of genes encoding leucine-rich repeat receptor-like kinase between rice and Arabidopsis [Elektronische Daten] [Sun-Goo Hwang, Dong Kim, Cheol Jang] The leucine-rich repeat (LRR) receptor kinase (RLK) proteins constitute a large superfamily in the plant genome, and carry out key functions in a variety of biological pathways. In an effort to determine the evolutionary fate of members of a large gene family such as plant LRR RLK proteins we conducted in silico analysis using complete genome sequencing datasets, genome-wide transcriptome databases, and bioinformatics tools. A total of 292 and 165 LRR RLK genes were retrieved from the rice and Arabidopsis genomes, respectively, formed by diverse duplication events for gene expansion. The phylogenic analyses of the LRR RLK genes suggested combinations of LRR domains and RLK domains in the ancient plant genome prior to the divergence of rice and Arabidopsis, followed by massive independent expansions during speciation. The somewhat high frequencies (50-73%) of expressional divergence of members of duplicate gene pairs formed by whole/segmental genome duplication (W/SGD) and tandem duplication (TD) events of Arabidopsis and TD events of rice support the idea of their functional diversity for gene retention. By contrast, a relatively low degree (at least 20%) of members of rice LRR RLK gene pairs formed by W/SGD appear to be divergent in expression following the duplication event. At least 7 pairs of co-expressed gene clusters, including each of the tentative orthologous LRR RLK genes between rice and Arabidopsis, were enriched to an orthologous set between members of each of the pairs as compared to those of the random pairs, suggesting some degree of functional conservation of individual genes. These results may shed some light on the crucial functions of the plant LRR RLK genes with regard to a variety of biological processes. Springer Science+Business Media B.V., 2011 Comparative analysis nationallicence Evolution nationallicence Functional conservation nationallicence Functional diversity nationallicence LRR RLK gene nationallicence Hwang Sun-Goo Plant Genomics Lab, Department of Applied Plant Sciences, Kangwon Natl University, 200-713, Chuncheon, Korea aut Kim Dong Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 580-185, Jeongeup, Korea aut Jang Cheol Plant Genomics Lab, Department of Applied Plant Sciences, Kangwon Natl University, 200-713, Chuncheon, Korea aut Genetica Springer Netherlands 139/8(2011-08-01), 1023-1032 0016-6707 139:8<1023 2011 139 10709 https://doi.org/10.1007/s10709-011-9604-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10709-011-9604-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hwang Sun-Goo Plant Genomics Lab, Department of Applied Plant Sciences, Kangwon Natl University, 200-713, Chuncheon, Korea aut NATIONALLICENCE 700 1- Kim Dong Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 580-185, Jeongeup, Korea aut NATIONALLICENCE 700 1- Jang Cheol Plant Genomics Lab, Department of Applied Plant Sciences, Kangwon Natl University, 200-713, Chuncheon, Korea aut NATIONALLICENCE 773 0- Genetica Springer Netherlands 139/8(2011-08-01), 1023-1032 0016-6707 139:8<1023 2011 139 10709 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer