Transcriptome analysis identifies genes involved in the somatic embryogenesis of Eucalyptus.

BMC Genomics
Yufei XiaoBowen Chen

Abstract

Eucalyptus, a highly diverse genus of the Myrtaceae family, is the most widely planted hardwood in the world due to its increasing importance for fiber and energy. Somatic embryogenesis (SE) is one large-scale method to provide commercial use of the vegetative propagation of Eucalyptus and dedifferentiation is a key step for plant cells to become meristematic. However, little is known about the molecular changes during the Eucalyptus SE. We compared the transcriptome profiles of the differentiated and dedifferentiated tissues of two Eucalyptus species - E. camaldulensis (high embryogenetic potential) and E. grandis x urophylla (low embryogenetic potential). Initially, we identified 18,777 to 20,240 genes in all samples. Compared to the differentiated tissues, we identified 9229 and 8989 differentially expressed genes (DEGs) in the dedifferentiated tissues of E. camaldulensis and E. grandis x urophylla, respectively, and 2687 up-regulated and 2581 down-regulated genes shared. Next, we identified 2003 up-regulated and 1958 down-regulated genes only in E. camaldulensis, including 6 somatic embryogenesis receptor kinase, 17 ethylene, 12 auxin, 83 ribosomal protein, 28 zinc finger protein, 10 heat shock protein, 9 histone, 122 cell ...Continue Reading

References

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Citations

Mar 12, 2021·G3 : Genes - Genomes - Genetics·Zihai QinBowen Chen

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Methods Mentioned

BETA
cDNA library construction
PCR

Software Mentioned

ANNOVAR
htseq
R package ‘ qvalue ’
edgeR
Stringtie
Hisat2

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