Abstract:
:CLE peptide hormones are critical regulators of many cell proliferation and differentiation mechanisms in plants. These 12-13 amino acid glycosylated peptides play vital roles in a diverse range of plant tissues, including the shoot, root and vasculature. CLE peptides are also involved in controlling legume nodulation. Here, the entire family of CLE peptide-encoding genes was identified in Medicago truncatula (52) and Lotus japonicus (53), including pseudogenes and non-functional sequences that were identified. An array of bioinformatic techniques were used to compare and contrast these complete CLE peptide-encoding gene families with those of fellow legumes, Glycine max and Phaseolus vulgaris, in addition to the model plant Arabidopsis thaliana. This approach provided insight into the evolution of CLE peptide families and enabled us to establish putative M. truncatula and L. japonicus orthologues. This includes orthologues of nodulation-suppressing CLE peptides and AtCLE40 that controls the stem cell population of the root apical meristem. A transcriptional meta-analysis was also conducted to help elucidate the function of the CLE peptide family members. Collectively, our analyses considerably increased the number of annotated CLE peptides in the model legume species, M. truncatula and L. japonicus, and substantially enhanced the knowledgebase of this critical class of peptide hormones.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Hastwell AH,de Bang TC,Gresshoff PM,Ferguson BJdoi
10.1038/s41598-017-09296-wsubject
Has Abstractpub_date
2017-08-24 00:00:00pages
9384issue
1issn
2045-2322pii
10.1038/s41598-017-09296-wjournal_volume
7pub_type
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