Journal
JOURNAL OF PLANT GROWTH REGULATION
Volume 19, Issue 3, Pages 290-305Publisher
SPRINGER
DOI: 10.1007/s003440000045
Keywords
forest biotechnology; genomics; gymnosperms; Pinus; plant longevity; plant reproduction; wood formation; wood structure; xylogenesis
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Pines provide a model system for the gymnosperms, an old and successful group of vascular plants that last shared a common ancestor with the angiosperms about 285 million years ago. Gymnosperms are distinct from angiosperms in their reproduction, development, metabolism, adaptations, and evolution. Pines cover vast areas of the globe, are one of the most important genera of forest trees, dominate the ecology of many temperate and subtropical forest ecosystems, and provide a major fraction of the world's wood. Here, we summarize many features of pine that make it a useful model for gymnosperms and woody plants. We also describe the influence of its reproductive system on methods for genetic analysis and the prospects for genomic studies and genetic engineering. Pines are limited as model systems by their long generation times, large size, large genomes, and the long time from fertilization to seed set.
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