Arabidopsis thaliana

The first mutant in A.

In the lab, A. The Arabidopsis Information Resource TAIR is a curated online information source for Arabidopsis thaliana genetic and molecular biology research, and The Arabidopsis Book is an online compilation of invited chapters on Arabidopsis thaliana biology.

Inthe German botanist Gustav Heynhold erected the new genus Arabidopsis and placed the plant in that genus. Further, the selfing nature of this plant assists genetic experiments. They had a life span of 40 days. All of the species in Arabidopsis are indigenous to Europewhile two of the species have broad ranges also extending into North America and Asia.

Also, as an individual plant can produce several thousand seeds; each of the above criteria leads to A. Genetics[ edit ] Genetic transformation of A. Having specialized as a spring ephemeralit has been used to found several laboratory strains that take about six weeks from germination to mature seed.

However, the phenomenon observed reversion of mutant copies of the HOTHEAD gene to a wild-type state was later suggested to be an artifact because the mutants show increased outcrossing due to organ fusion.

Laibach continued his important contributions to A. It was one of several candidates that included maizepetuniaand tobacco. Inthe crew of the Soviet Salyut 7 space station grew some Arabidopsis, thus becoming the first plants to flower and produce seeds in space. 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 BeringiaCrucihimalayaIanhedgeaOlimarabidopsisand Pseudoarabidopsis.

It also appears to be native in tropical afroalpine ecosystems. Non-Mendelian inheritance controversy[ edit ] Inscientists at Purdue University proposed that A. Characterized accessions and mutant lines of A. Knockouts of the corresponding gene lead to glabrous plants. The central stem that produces flowers grows after about three weeks, and the flowers naturally self-pollinate.

The small size of the plant is convenient for cultivation in a small space, and it produces many seeds. With the help of Albert Kranz, these were organised into a large collection of natural accessions of A. The current protocol, termed "floral dip", involves simply dipping flowers into a solution containing Agrobacterium carrying a plasmid of interest and a detergent.

In the s, A. The genus name, Arabidopsiscomes from Greekmeaning "resembling Arabis " the genus in which Linnaeus had initially placed it.

InCarl Linnaeus renamed the plant Arabis thaliana in honor of Thal. These roots form interactions with rhizosphere bacteria such as Bacillus megaterium. Thousands of natural inbred accessions of A. 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 basal leaves are green to slightly purplish in color, 1. History of research on Arabidopsis thaliana Botanists and biologists began to research A. The site of T-DNA insertions has been determined for overindependent transgenic lines, with the information and seeds accessible through online T-DNA databases.

Their findings confirm the species formerly included in Arabidopsis made it polyphyletic. Status[ edit ] Currently, the genus Arabidopsis has nine species and a further eight subspecies recognised.

Leaves are covered with small, unicellular hairs called trichomes. The most commonly used background lines are Ler Landsberg erectaand Col, or Columbia.

Through these collections, insertional mutants are available for most genes in A.Breaking News. A great big thank you! [Aug 6, ] Thank you to all the members of the community who have contributed gene function data to TAIR in the first half of !

About Arabidopsis thaliana. Arabidopsis thaliana is a small flowering plant that is widely used as a model organism in plant biology. Arabidopsis is a member of the mustard (Brassicaceae) family, which includes cultivated species such as cabbage and radish.

Arabidopsis thaliana, the thale cress, mouse-ear cress or arabidopsis, is a small flowering plant native to Eurasia and Africa. A. thaliana is considered a weed; it is found by roadsides and in disturbed land.

A winter annual with a relatively short life cycle, A.

thaliana is a popular model organism in plant biology and genetics. For a complex. About Arabidopsis. Summary; History of Arabidopsis thaliana; Common names for an uncommon weed.

Geographic distribution of ecotypes and the history of. Abstract. Arabidopsis thaliana is a small plant in the mustard family that has become the model system of choice for research in plant biology. Significant advances in understanding plant growth and development have been made by focusing on the molecular genetics of this simple angiosperm.

This plant can be weedy or invasive according to the authoritative sources noted plant may be known by one or more common names in different places, and some are listed above.

Arabidopsis thaliana
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