Journal
CYTOLOGIA
Volume 88, Issue 3, Pages 189-195Publisher
UNIV TOKYO CYTOLOGIA
DOI: 10.1508/cytologia.88.189
Keywords
Nucleus-cytoplasm compatibility; Alloplasmic line; Allopolyploid speciation; Heteroplasmy; Triticeae
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This review focuses on the current understanding of the nucleus-cytoplasm compatibility system in the tribe Triticeae. It emphasizes the necessity for further research to identify and understand its complex genetic regulatory mechanism and its potential practical application in agriculture.
In the tribe Triticeae, systematic studies using alloplasmic lines have greatly facilitated our understanding of cytoplasmic genome inheritance, its structural and functional diversity, and interaction with nuclear genomes. Effective utilization of these valuable experimental tools produced by combining given nuclear genomes with cytoplasmic genomes from various related species has provided ample evidence supporting the presence and roles of a genetic system controlling nucleus-cytoplasm compatibility operating particularly in the lineages of allopolyploid speciation. This review focused on the current state of our knowledge of the nucleuscytoplasm compatibility system. It also emphasized the necessity for further research toward more precise identification and understanding of its complex genetic regulatory mechanism and possible practical application in agriculture.
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