Number of chromosomes in genome of most conifers

Value 12 chromosomes Range: 2n = 24 Table - link chromosomes
Organism Plants
Reference Nystedt B et al., The Norway spruce genome sequence and conifer genome evolution. Nature. 2013 May 30 497(7451):579-84. doi: 10.1038/nature12211 p.579 left column top paragraph & p.580 table 1PubMed ID23698360
Primary Source [4] Flory, W. S. Chromosome numbers and phylogeny in the gymnosperms. J. Arnold Arb. 17, 82–87 (1936)
Comments P.579 left column top paragraph: "Conifers contribute a large fraction of terrestrial photosynthesis and biomass, and the cultural and economic values of conifers are also paramount, early civilizations used conifers for firewood, tools and artefacts and today several national economies depend on commodities produced from conifers. However, despite their abundance and importance, [investigators'] understanding of conifer genomes is limited. Most conifers have 12 (2n = 24) chromosomes, probably reflecting the ancestral karyotype (primary source), which are typically of similar size, each being roughly comparable to the size of the human genome, and containing high proportions of repetitive elements (refs 5, 6)."
Entered by Uri M
ID 113646