Journal
CURRENT OPINION IN PLANT BIOLOGY
Volume 59, Issue -, Pages -Publisher
CURRENT BIOLOGY LTD
DOI: 10.1016/j.pbi.2020.101993
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Funding
- National Science Foundation [IOS-1547760]
- Innovative Genomics Institute
- U.S. Department of Agriculture (USDA) Agricultural Experiment Station [CA-D-XXX-6973-H]
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This article discusses recent advances in understanding the zygotic transition and embryo initiation in angiosperms, as well as the application of this knowledge in agricultural biotechnology through synthetic apomixis.
In flowering plants, haploid gametes - an egg cell and a sperm cell fuse to form the first diploid cell - the zygote. The zygote is the progenitor stem cell that gives rise to all the embryonic and post embryonic tissues and organs. Unlike animals, both maternal and paternal gene products participate in the initial development of zygotes in plants. Here, we discuss recent advances in understanding of the zygotic transition and embryo initiation in angiosperms, including the role of parental contributions to gene expression in the zygote. We further discuss utilization of this knowledge in agricultural biotechnology through synthetic apomixis. Parthenogenesis obtained by manipulation of embryogenic factors, combined with mutations that bypass meiosis, enables clonal propagation of hybrid crops through seeds.
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