NDLI: A gymnosperm homolog of SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASE-1 (SERK1) is expressed during somatic embryogenesis

Content Provider	Springer Nature Link
Author	Steiner, Neusa Santa Catarina, Claudete Guerra, Miguel Pedro Cutri, Lucas Dornelas, Marcelo C. Floh, Eny I. S.
Copyright Year	2011
Abstract	The physiological and molecular processes controlling zygotic and somatic embryo development in angiosperms are mediated by a hierarchically organized program of gene expression. Despite the overwhelming information available about the molecular control of the embryogenic processes in angiosperms, little is known about these processes in gymnosperms. Here we describe the cloning and characterization of the expression pattern of the Araucaria angustifolia putative homolog of a SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASE (SERK) gene family member, designated as AaSERK1. The Araucaria AaSERK1 gene encodes a leucine-rich repeat receptor-like kinase showing significant similarity to angiosperm homologs of SERK1, known to be involved in early somatic and zygotic embryogenesis. Accordingly, RT-PCR results showed that AaSERK1 is preferentially expressed in Araucaria embryogenic cell cultures. Additionally, in situ hybridization results showed that AaSERK1 transcripts initially accumulate in groups of cells at the periphery of the embryogenic calli and then are restricted to the developing embryo proper. Our results indicate that AaSERK1 might have a role during somatic embryogenesis in Araucaria, suggesting a potentially conserved mechanism, involving SERK-related leucine-rich repeat receptor-like kinases, in the embryogenic processes among all seed plants.
Starting Page	41
Ending Page	50
Page Count	10
File Format	PDF
ISSN	01676857
Journal	Plant Cell, Tissue and Organ Culture (PCTOC)
Volume Number	109
Issue Number	1
e-ISSN	15735044
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-10-25
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Gene expression SERK Somatic embryogenesis Araucaria angustifolia Endangered tree species Leucine-rich repeat receptor-like kinase Plant Pathology Plant Physiology Plant Sciences Plant Genetics & Genomics
Content Type	Text
Resource Type	Article
Subject	Horticulture

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