ArticlePlanta2016
Identification of putative homologs of Larix decidua to BABYBOOM (BBM), LEAFY COTYLEDON1 (LEC1), WUSCHEL-related HOMEOBOX2 (WOX2) and SOMATIC EMBRYOGENESIS RECEPTOR-like KINASE (SERK) during somatic embryogenesis.
Article in Planta, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
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39 citing papers in PubMed, 108 citations in OpenAlex.
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- Induction of Somatic Embryogenesis in Plants: Different Players and Focus on WUSCHEL and WUS-RELATED HOMEOBOX (WOX) Transcription Factors.International journal of molecular sciences · 2022Review
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5 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
MAIN
conclusionEmbryogenesis-related genes ( LdBBM, LdLEC1, LdWOX2 and LdSERK ) were confirmed in sequence and expression abundance for Larix decidua —these findings are valid for somatic as well as for zygotic embryo development.S omatic embryogenesis is a reliable source of high-quality genotypes as it presents an advantageous alternative for conifers in forestry, independent from seed production. Although this propagation method is already being applied, molecular factors initiating and controlling the process remain to be understood. The embryogenesis-associated genes BABYBOOM (BBM), LEAFY COTYLEDON1 (LEC1), WUSCHEL-related HOMEOBOX2 (WOX2) and SOMATIC EMBRYOGENESIS RECEPTOR-like KINASE (SERK) were identified and analyzed in somatic embryos of the European larch, L. decidua Mill. Subsequent comparisons with annotated sequences displayed similarities with angiosperm homologs. Transcript accumulation of the identified genes during embryogenesis has been analyzed. LdLEC1 and LdWOX2 are mainly expressed during early embryogenesis, whereas LdBBM and LdSERK reveal increased expression during later development. Temporal and spatial expression studies revealed a specific LdLEC1 signal in the outer cell layer of young embryo heads, whereas mature embryos showed a homogeneous expression. The overexpression of LdLEC1 in Arabidopsis influences germination and cotyledon formation, thus indicating the interspecific importance of LEC1 for proper embryo and specifically cotyledon development. Our data support a conserved role of principal regulators during plant embryogenesis that may be used as molecular markers for embryogenicity and to further determine initiating processes of somatic embryogenesis.
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