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Pinus taeda

Pinus taeda
Characteristic appearance of loblolly pines, south Mississippi, USA
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnospermae
Division: Pinophyta
Class: Pinopsida
Order: Pinales
Family: Pinaceae
Genus: Pinus
Subgenus: P. subg. Pinus
Section: P. sect. Trifoliae
Subsection: P. subsect. Australes
Species:
P. taeda
Binomial name
Pinus taeda
Natural range of loblolly pine

Pinus taeda, commonly known as loblolly pine, is one of several pines native to the Southeastern United States, from East Texas to Florida, and north to southern New Jersey.[2] The wood industry classifies the species as a southern yellow pine.[3] U.S. Forest Service surveys found that loblolly pine is the second-most common species of tree in the United States, after red maple.[4] For its timber, the pine species is regarded as the most commercially important tree in the Southeastern U.S.[5][6][7] The common name loblolly is given because the pine species is found mostly in lowlands and swampy areas.[8]

Loblolly pine is the first among over 100 species of Pinus to have its complete genome sequenced. As of March 2014, it was the organism having the largest sequenced genome size. Its genome, with 22 billion base pairs, is seven times larger than that of humans.[9][10] As of 2018, assembly of the axolotl genome (32Gb) displaced loblolly pine as the largest assembled genome.[11] The loblolly pine was selected as the official state tree of Arkansas in 1939.[12]

  1. ^ Farjon, A. (2013). "Pinus taeda". IUCN Red List of Threatened Species. 2013: e.T42420A2978958. doi:10.2305/IUCN.UK.2013-1.RLTS.T42420A2978958.en. Retrieved 19 November 2021.
  2. ^ Kral, Robert (1993). "Pinus taeda". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 2. New York and Oxford: Oxford University Press – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  3. ^ Cite error: The named reference baker was invoked but never defined (see the help page).
  4. ^ Nix, Steve. "Ten Most Common Trees in the United States". About.com Forestry. Retrieved 11 January 2013.
  5. ^ "Loblolly Pine". Plant Information Center. Retrieved 27 March 2014.
  6. ^ "Loblolly pine". Virginia Tech Forestry Department. Retrieved 27 March 2014.
  7. ^ "Loblolly Pine". Tree Improvement Programme. Retrieved 27 March 2014.
  8. ^ The American Heritage® Dictionary of the English Language (4th ed.). Houghton Mifflin Company. 2000.
  9. ^ Zimin, Aleksey; Stevens, Kristian; et al. (Mar 2014). "Sequencing and Assembly of the 22-Gb Loblolly Pine Genome". Genetics. 196 (3): 875–890. doi:10.1534/genetics.113.159715. PMC 3948813. PMID 24653210.
  10. ^ Main, Douglas (20 March 2014). "Scientists Sequence The Largest Genome To Date". Popular Science. A Bonnier Corporation Company. Retrieved 27 March 2014.
  11. ^ Eugene W. Myers, Sergej Nowoshilow (2018). "The axolotl genome and the evolution of key tissue formation regulators". Nature. 554 (7690): 50–55. Bibcode:2018Natur.554...50N. doi:10.1038/nature25458. hdl:21.11116/0000-0003-F659-4. PMID 29364872.
  12. ^ "47 Arkansas Facts". Meet The USA. 2022.

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