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The regulation of synchronism by abscisic acid-responsive small non-coding RNAs during somatic embryogenesis in larch (Larix leptolepis)

ABSTRACT: Small non-coding RNAs (sncRNAs) are emerging as key regulators of embryogenesis. To investigate the roles of sRNAs in regulating synchronism of somatic embryogenesis in Larix leptolepis, we deciphered the endogenous "sRNAome" in synchronous and desynchronous embryos. The 24-nt class sRNAs were overrepresented in both synchronous embryos and desynchronous embryos, accounting for 85.29% and 44.79%. A total of 29 miRNAs were upregulated in synchronous embryos, whereas 59 miRNAs were upregulated in desynchronous embryos. We describe the emerging theme for sncRNAs function: inhibiting the precocious expression, thus regulating the synchronism of somatic embryogenesis. These findings indicate that larch and possibly other gymnosperms have complex mechanisms of gene regulation involving sRNAs and miRNAs operating transcriptionally and post-transcriptionally during the regulation of synchronism.

ORGANISM(S): Larix kaempferi

PROVIDER: GSE49055 | GEO | 2014/07/19

SECONDARY ACCESSION(S): PRJNA212784

REPOSITORIES: GEO

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The regulation of synchronism by abscisic acid-responsive small non-coding RNAs during somatic embryogenesis in larch (Larix leptolepis)

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