Arabidopsis

This article is about the genus. For the model organism, see Arabidopsis thaliana.

Arabidopsis
Thale cress (Arabidopsis thaliana)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Brassicales
Family: Brassicaceae
Genus: Arabidopsis
Heynh. in Holl & Heynh.
Type species
Arabidopsis thaliana
L.
Species

See text

Synonyms

Cardaminopsis (C.A.Mey.) Hayek

Arabidopsis (rockcress) is a genus in the family Brassicaceae. They are small flowering plants related to cabbage and mustard. This genus is of great interest since it contains thale cress (Arabidopsis thaliana), one of the model organisms used for studying plant biology and the first plant to have its entire genome sequenced. Changes in thale cress are easily observed, making it a very useful model.

Status

Currently, the genus Arabidopsis has nine species and a further eight subspecies recognised. This delimitation is quite recent and is based on morphological and molecular phylogenies by O'Kane and Al-Shehbaz[1][2] and others.

Their findings confirm the species formerly included in Arabidopsis made it polyphyletic. The most recent reclassification moves two species previously placed in Cardaminopsis and Hylandra and three species of Arabis into Arabidopsis, but excludes 50 that have been moved into the new genera Beringia, Crucihimalaya, Ianhedgea, Olimarabidopsis, and Pseudoarabidopsis.

All of the species in Arabidopsis are indigenous to Europe, while two of the species have broad ranges also extending into North America and Asia.

In the last two decades, Arabidopsis thaliana has gained much interest from the scientific community as a model organism for research on numerous aspects of plant biology. The Arabidopsis Information Resource (TAIR)[3] is a curated online information source for Arabidopsis thaliana genetic and molecular biology research, and The Arabidopsis Book[4] is an online compilation of invited chapters on Arabidopsis thaliana biology. (Note that as of 2013 no further chapters will be published.) In Europe, the model organism resource centre for Arabidopsis thaliana germplasm, bioinformatics and molecular biology resources (including GeneChips) is the Nottingham Arabidopsis Stock Centre (NASC) whilst in North America germplasm services are provided by the Arabidopsis Biological Resource Center (ABRC) based at Ohio State University. The ordering system for ABRC was incorporated into the TAIR database in June 2001 whilst NASC has always (since 1991) hosted its own ordering system and genome browser.

In 1982, the crew of the Soviet Salyut 7 space station grew some Arabidopsis, thus becoming the first plants to flower and produce seeds in space. They had a life span of 40 days.[5] Arabidopsis thaliana seeds were taken to the Moon on the Chang'e 4 lander in 2019, as part of a student experiment. As of May 2022 Arabidopsis thaliana has successfully been grown in samples of lunar soil.[6]

Arabidopsis is quite similar to the Boechera genus.

List of species and subspecies

  • Arabidopsis arenicola (Richardson ex Hook.) Al-Shehbaz, Elven, D.F. Murray & S.I. Warwick — Arctic rock cress (Greenland, Labrador, Nunavut, Québec, Ontario, Manitoba, Saskatchewan)
  • Arabidopsis arenosa (L.) Lawalrée — sand rock cress
    • A. arenosa subsp. arenosa (Europe: native in Austria, Belarus, Bosnia Herzegovina, Bulgaria, Croatia, Czech Republic, NE France, Germany, Hungary, N Italy, Latvia, Lithuania, Macedonia, Poland, Romania, Slovakia, Slovenia, Switzerland, and Ukraine; naturalized in Belgium, Denmark, Estonia, Finland, Netherlands, Norway, Russia and W Siberia, and Sweden; absent in Albania, Greece, C and S Italy, and Turkey)
    • A. arenosa subsp. borbasii (E Belgium, Czech Republic, NE France, Germany, Hungary, Poland, Romania, Slovakia, Switzerland, Ukraine, doubtfully occurring in Denmark)
  • Arabidopsis cebennensis (DC.) (SE France)
  • Arabidopsis croatica (Schott) (Bosnia, Croatia)
  • Arabidopsis halleri (L.)
    • A. halleri subsp. halleri (Austria, Croatia, Czech Republic, Germany, N and C Italy, Poland, Romania, Slovakia, Slovenia, Switzerland, and S Ukraine. Probably introduced in N France and extinct in Belgium)
    • A. halleri subsp. ovirensis (Wulfen) (Albania, Austria, NE Italy, Romania, Slovakia, Slovenia, SW Ukraine, Yugoslavia)
    • A. halleri subsp. gemmifera (Matsumura) (Russian Far East, northeastern China, Korea, Japan, and Taiwan)
  • Arabidopsis lyrata (L.) O'Kane & Al-Shehbaz — sand cress
    • A. lyrata subsp. lyrata (NE European Russia, Alaska, Canada (Ontario west into British Columbia), and southeastern and central United States (Vermont south into northern Georgia and Mississippi northward into Missouri and Minnesota))
    • A. lyrata subsp. petraea (Linnaeus) O'Kane & Al-Shehbaz (Austria, Czech Republic, England, Germany, Hungary, Iceland, Ireland, N. Italy, Norway, Russia (NW Russia, Siberia and Far East), Scotland, Sweden, Ukraine, boreal North America (Alaska and Yukon). Apparently extinct in Poland)
    • A. lyrata subsp. kamchatica (Fischer ex D.C.) O'Kane & Al-Shehbaz (boreal Alaska, Canada (Yukon, Mackenzie District, British Columbia, northern Saskatchewan), Aleutian Islands, eastern Siberia, the Russian Far East, Korea, northern China, Japan and Taiwan)
  • Arabidopsis neglecta (Schult.) (Carpathian Mountains (Poland, Romania, Slovakia, and adjacent Ukraine))
  • Arabidopsis pedemontana (Boiss.) (northwestern Italy and presumably extinct in adjacent SW Switzerland)
  • Arabidopsis suecica (Fries) Norrlin (Fennoscandinavia and the Baltic region)
  • Arabidopsis thaliana (L.) Heynh. — thale cress (native range almost all Europe to central Asia, now naturalized worldwide)

Reclassified species

The following species previously placed in Arabidopsis are not currently considered part of the genus.

Cytogenetics

Cytogenetic analysis has shown the haploid chromosome number (n) is variable and varies across species in the genus:[7]

A. thaliana is n=5[8] and the DNA sequencing of this species was completed in 2001. A. lyrata has n=8 but some subspecies or populations are tetraploid.[9] Various subspecies A. arenosa have n=8 but can be either 2n (diploid) or 4n (tetraploid).[10] A. suecica is n=13 (5+8) and is an amphidiploid species originated through hybridization between A. thaliana and diploid A. arenosa.[11]

A. neglecta is n=8, as are the various subspecies of A. halleri.[10]

As of 2005, A. cebennensis, A. croatica and A. pedemontana have not been investigated cytologically.

See also

References

  1. ^ O'Kane, Steve L.; Al-Shehbaz, Ihsan A. (1997). "A synopsis of Arabidopsis (Brassicaceae)". Novon. 7 (3): 323. doi:10.2307/3391949. JSTOR 3391949.
  2. ^ O'Kane, Steve L.; Al-Shehbaz, Ihsan A. (2003). "Phylogenetic position and generic limits of Arabidopsis (Brassicaceae) based on sequences of nuclear ribosomal DNA". Annals of the Missouri Botanical Garden. 90 (4): 603. doi:10.2307/3298545. JSTOR 3298545. S2CID 85316468.
  3. ^ The Arabidopsis Information Resource
  4. ^ "The Arabidopsis Book". American Society of Plant Biologists. 2019-04-13. Retrieved 2021-08-14.
  5. ^ "First species of plant to flower in space". Guinness World Records. Retrieved 2017-03-10.
  6. ^ Keeter, Bill (2022-05-12). "Scientists Grow Plants in Lunar Soil". NASA. Retrieved 2022-05-13.
  7. ^ Al-Shehbaz, Ihsan A.; O'Kane Jr, Steve L. (2002). "Taxonomy and Phylogeny of Arabidopsis (Brassicaceae)". The Arabidopsis Book. Volume 1. Vol. 1. The American Society of Plant Biologists. pp. e0001. doi:10.1199/tab.0001. PMC 3243115. PMID 22303187. {{cite book}}: |journal= ignored (help)
  8. ^ Lysak, M. A; Berr, A; Pecinka, A; Schmidt, R; McBreen, K; Schubert, I (2006). "Mechanisms of chromosome number reduction in Arabidopsis thaliana and related Brassicaceae species". Proceedings of the National Academy of Sciences. 103 (13): 5224–5229. Bibcode:2006PNAS..103.5224L. doi:10.1073/pnas.0510791103. PMC 1458822. PMID 16549785.
  9. ^ Dart, Sara; Kron, Paul; Mable, Barbara K (2004). "Characterizing polyploidy in Arabidopsis lyrata using chromosome counts and flow cytometry". Canadian Journal of Botany. 82 (2): 185. doi:10.1139/b03-134.
  10. ^ a b Joly, Simon; Schmickl, Roswitha; Paule, Juraj; Klein, Johannes; Marhold, Karol; Koch, Marcus A. (2012). "The Evolutionary History of the Arabidopsis arenosa Complex: Diverse Tetraploids Mask the Western Carpathian Center of Species and Genetic Diversity". PLOS ONE. 7 (8): e42691. Bibcode:2012PLoSO...742691S. doi:10.1371/journal.pone.0042691. ISSN 1932-6203. PMC 3411824. PMID 22880083.
  11. ^ Jakobsson, Mattias; Hagenblad, Jenny; Tavaré, Simon; SäLl, Torbjörn; Halldén, Christer; Lind-Halldén, Christina; Nordborg, Magnus (2006). "A Unique Recent Origin of the Allotetraploid Species Arabidopsis suecica: Evidence from Nuclear DNA Markers". Molecular Biology and Evolution. 23 (6): 1217–31. doi:10.1093/molbev/msk006. PMID 16549398.

Further reading

  • Al-Shehbaz, I. A., O'Kane, Steve L. (2002). Taxonomy and Phylogeny of Arabidopsis (Brassicaceae). The Arabidopsis Book: 1-22.
  • Ceccato, Luca; Masiero, Simona; Sinha Roy, Dola; Bencivenga, Stefano; Roig-Villanova, Irma; Ditengou, Franck Anicet; Palme, Klaus; Simon, Rüdiger; Colombo, Lucia (2013-06-17). Grebe, Markus (ed.). "Maternal Control of PIN1 Is Required for Female Gametophyte Development in Arabidopsis". PLoS ONE. 8 (6): e66148. doi:10.1371/journal.pone.0066148. ISSN 1932-6203. PMC 3684594. PMID 23799075.
  • O'Kane Jr, S. L., i Al-Shehbaz, I. A. (1997). A synopsis of Arabidopsis (Brassicaceae): Novon 7: 323–327.
  • O'Kane Jr, S. L., i Al-Shehbaz, I. A. (2003). Phylogenetic position and generic limits of Arabidopsis (Brassicaceae) based on sequences of nuclear ribosomal DNA: Annals of the Missouri Botanical Garden 90 (4): 603–612.
  • "The Arabidopsis Book". American Society of Plant Biologists. 2019-04-13. Retrieved 2021-08-14. (Note that in 2013 ASPB decided to stop publishing new chapters.)

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