NDLI: Characterization of leafy cotyledon1-like during embryogenesis in Theobroma cacao L.

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Planta : Volume 227, Issue 3, February 2008

Planta : Volume 227, Issue 2, January 2008

Planta : Volume 227, Issue 1, December 2007

Characterization of leafy cotyledon1-like during embryogenesis in Theobroma cacao L.

Content Provider	Springer Nature Link
Author	Aleman, Laurence Devic, Martine Niemenak, Nicolas Sanier, Christine Guillemit, Jocelyne Rio, Mariannick Verdeil, Jean Luc Montoro, Pascal
Copyright Year	2007
Abstract	Theobroma cacao L., an economically important crop for developing countries, can be experimentally propagated by somatic embryogenesis. Because of their potential roles in embryogenesis, a gene candidate strategy was initiated to find gene homologues of the members of the leafy cotyledon family of transcription factors. A homologue of the leafy cotyledon1-like gene, that encodes the HAP 3 subunit of the CCAAT box-binding factor, was found in the cocoa genome (TcL1L). The translated peptide shared a high amino acid sequence identity with the homologous genes of Arabidopsis thaliana, Phaseolus coccineus and Helianthus annuus. TcL1L transcripts mainly accumulated in young and immature zygotic embryos, and, to a lesser extent, in young and immature somatic embryos. In situ hybridization specified the localization of the transcripts as being mainly in embryonic cells of young embryos, the meristematic cells of the shoot and root apex of immature embryos, and in the protoderm and epidermis of young and immature embryos, either zygotic or somatic. Non-embryogenic explants did not show TcL1L expression. Ectopic expression of the TcL1L gene could partially rescue the Arabidopsis lec1 mutant phenotype, suggesting a similarity of function in zygotic embryogenesis.
Starting Page	853
Ending Page	866
Page Count	14
File Format	PDF
ISSN	00320935
Journal	Planta
Volume Number	227
Issue Number	4
e-ISSN	14322048
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-12-18
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Embryogenesis Gene expression HAP3 Leafy cotyledon1-like Theobroma cacao Transcription factor Forestry Ecology Agriculture Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science

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