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Author Li N., Wang Y., Lu J., Liu C.
Title Genome-Wide Identification and Characterization of the ALOG Domain Genes in Rice.
Abstract:
The ALOG domain genes, named after the <i>Arabidopsis</i> LSH1 and <i>Oryza</i> G1 (ALOG) proteins, have frequently been reported as key developmental regulators in rice and <i>Arabidopsis</i>. However, the investigation of the ALOG gene family is limited. Here, we conducted a genome-wide investigation of the ALOG gene family in rice and six other species. In total, eighty-four ALOG domain genes were identified from the seven species, of which fourteen ALOG domain genes (<i>OsG1</i>/<i>G1Ls</i>) were identified in the rice genome. The fourteen <i>OsG1</i>/<i>G1Ls</i> were unevenly distributed on eight chromosomes, and we found that eight segmental duplications contributed to the expansion of <i>OsG1</i>/<i>G1Ls</i> in the rice genome. The eighty-four ALOG family genes from seven species were classified into six clusters, and the ALOG domain-defined motifs 1, 2, and 3 were highly conserved across species according to the phylogenetic and structural analysis. However, the newly identified motifs 4 and 5 were only present in monocots, indicating a specified function in monocots. Moreover, <i>OsG1</i>/<i>G1Ls</i> exhibited tissue-specific expression patterns. Coexpression analysis suggested that <i>OsG1</i> integrates <i>OsMADS50</i> and the downstream MADS-box genes, such as <i>OsMADS1</i>, to regulate the development of rice inflorescence; <i>OsG1L7</i> potentially associates with <i>OsMADS22</i> and <i>OsMADS55</i> to regulate stem elongation. In addition, comparative expression analysis revealed the conserved biological functions of ALOG family genes among rice, maize, and <i>Arabidopsis</i>. These results have shed light on the functional study of ALOG family genes in rice and other plants.
Journal International Journal of Genomics
Country China
Volume 2019
Pages 2146391
Year 2019
PubMed ID 30923712
PubMed Central ID 6409076
DOI 10.1155/2019/2146391
URL -
Relation
Gene BLS1 G1 G1L1 G1L10 G1L11 G1L12 G1L13 G1L2 G1L3 G1L4 G1L5 G1L7 G1L8 G1L9 MADS22 MADS50 MADS55
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Lethal Embryo
Mutantion Strain
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Stages in Each Organ
- Muant Lines (Gene)
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Cultivated Varieties(NIG Collection) -
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/rice/oryzabase