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首页> 外文期刊>Genomics >Genome-wide identification and expression analysis of R2R3, 3R- and 4R-MYB transcription factors during lignin biosynthesis in flax (Linum usitatissimum)
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Genome-wide identification and expression analysis of R2R3, 3R- and 4R-MYB transcription factors during lignin biosynthesis in flax (Linum usitatissimum)

机译：亚麻木质素生物合成期间R2R3，3R-和4R-MYB转录因子的基因组鉴定及表达分析（Linum Usitatissimum）

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MYB transcription factors (TFs) have vital roles in regulating lignin or fiber development. Flax (Linum usitatissimum) is known as one of the plants with high fiber production capacity. However, no studies have been conducted to identify and characterize MYB TFs in the flax genome. Results showed that flax genome harbours 167 R2R3, seven 3R, and one 4R-type MYB TFs. 22 MYB genes (%13) were estimated to be tandem duplicated dated around 13.3–86.98 Mya. 130 flax MYB members have apparent orthologous with Arabidopsis, in which 17 R2R3 MYBs are associated with lignin biosynthesis. MYB062, MYB072, MYB096, MYB141, and MYB146 genes were up-regulated in tissues having higher lignin production capacity. In opposite, MYB012 and MYB113 genes were down-regulated which points out the involvement of those genes in the lignin biosynthesis mechanism. This comprehensive study can provide a basis for understanding the role of MYBs in fiber or lignin production in flax.
机译：MYB转录因子（TFS）对调节木质素或纤维发展具有重要作用。亚麻（Linum Usitatissimum）被称为具有高纤维生产能力的植物之一。然而，未进行任何研究以在亚麻基因组中鉴定和表征MyB TFS。结果表明，亚麻基因组Harbors 167R2R3，73R和1个4R型MYB TFS。 22 MyB基因（％13）估计串联重复约为13.3-86.98 mya。 130亚麻MYB成员与拟南芥明显直观，其中17 r2R3 Mybs与木质素生物合成有关。 MyB062，MyB072，MyB096，MyB141和MyB146基因在具有更高的木质素生产能力的组织中上调。在相反的情况下，下调MyB012和MyB113基因，指出了这些基因在木质素生物合成机制中的参与。这项综合研究可以为了解MYBS在亚麻纤维或木质素生产中的作用提供依据。

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