title: Parthenogenetic egg cells of wheat: cellular and molecular studies.
abstract: The 'Salmon' system of wheat comprises three isogenic alloplasmic lines with either zygotic (aS) or autonomous, fertilisation-independent (cS kS) embryo development. While the initiation of embryogenesis from the isolated sexual egg cell depends on in vitro fertilisation, the corresponding parthenogenetic egg cell develops into an early embryo without fertilisation. This demonstrates that parthenogenesis is an inherent feature of the isolated egg cell. Based on this observation, we have constructed egg-cell-specific cDNA libraries and report first results of a sequencing project aimed at the isolation of putative egg-cell-specific and parthenogenesis-related genes.
authors.affiliation: Universität Hamburg, Angewandte Molekularbiologie der Pflanzen II, Ohnhorststrasse 18, 22609 Hamburg, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Kumlehn
authors.forename: V
authors.initials: V
authors.lastname: Kirik
authors.forename: A
authors.initials: A
authors.lastname: Czihal
authors.forename: L
authors.initials: L
authors.lastname: Altschmied
authors.forename: F
authors.initials: F
authors.lastname: Matzk
authors.forename: H
authors.initials: H
authors.lastname: Lörz
authors.forename: H
authors.initials: H
authors.lastname: Bäumlein