NDLI: Genes normally expressed in the endosperm are expressed at early stages of microspore embryogenesis in maize

Content Provider	Springer Nature Link
Author	Magnard, Jean Louis Le Deunff, Erwan Domenech, Jezabel Rogowsky, Peter M. Testilla, Pilar S. Rougier, Mireille Risueño, María C. Vergne, Philippe Dumas, Christian
Copyright Year	2000
Abstract	Reproduction in flowering plants is characterized by double fertilization and the resulting formation of both the zygotic embryo and the associated endosperm. In many species it is possible to experimentally deviate pollen development towards an embryogenic pathway. This developmental switch, referred to as microspore embryogenesis or androgenesis, leads to the formation of embryos similar to zygotic embryos. In a screen for genes specifically expressed during early androgenesis, two maize genes were isolated by mRNA differential display. Both genes represent new molecular markers expressed at a very young stage of androgenic embryogenesis. When their expression pattern was studied during normal reproductive development, both showed early endosperm-specific expression. Investigation of the cytological features of young androgenic embryos revealed that they present a partially coenocytic organization similar to that of early endosperm. These findings suggest that maize androgenesis may possibly involve both embryogenesis and the establishment of endosperm-like components.
Starting Page	559
Ending Page	574
Page Count	16
File Format	PDF
ISSN	01674412
Journal	Plant Molecular Biology
Volume Number	44
Issue Number	4
e-ISSN	15735028
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2000-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biochemistry Plant Sciences Plant Pathology
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Medicine Agronomy and Crop Science

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