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The "triangle of U" diagram, showing the genetic relationships among six species of the genus Brassica. Chromosomes from each of the genomes A, B and C are represented by different colours. The triangle of U (/ uː / OO) is a theory about the evolution and relationships among the six most commonly known members of the plant genus Brassica.
The genus Brassica is known for its important agricultural and horticultural crops and also includes a number of weeds, both of wild taxa and escapees from cultivation. Brassica species and varieties commonly used for food include bok choy , broccoli , cauliflower , cabbage , choy sum , kohlrabi , napa cabbage , rutabaga , turnip and some seeds ...
The host range of X. campestris pv. raphani is wider than X. campestris pv. campestris and includes Brassica spp., radish, ornamental crucifers like wallflowers and tomato. Symptoms include circular dark spots that later became light brown or gray, sometimes surrounded by a water-soaked halo.
The mustard plant is any one of several plant species in the genera Brassica, Rhamphospermum and Sinapis in the family Brassicaceae (the mustard family). Mustard seed is used as a spice. Grinding and mixing the seeds with water, vinegar, or other liquids creates the yellow condiment known as prepared mustard.
Dowson [3] later reclassified the bacterium as Xanthomonas campestris and proposed the genus Xanthomonas. [4] Xanthomonas was first described as a monotypic genus and further research resulted in the division into two groups, A and B. [5] [6] Later work using DNA:DNA hybridization has served as a framework for the general Xanthomonas species ...
Brassicaceae (/ ˌ b r æ s ɪ ˈ k eɪ s iː ˌ iː,-s i ˌ aɪ /) or (the older) Cruciferae (/ k r uː ˈ s ɪ f ər i /) [2] is a medium-sized and economically important family of flowering plants commonly known as the mustards, the crucifers, or the cabbage family.
Wisconsin Fast Plants were initially developed as part of a larger breeding project of Rapid-Cycling Brassicas, originating in the early 1970s. [1] Wisconsin Fast Plants and other Rapid-Cycling Brassicas were selected through conventional plant breeding to be a tool that would speed up genetic research for disease resistance in economically important Brassica crops. [3]
[27] [28] There are possibly up to 100 polymorphs of the S-haplotype in Brassica, and within these there is a dominance hierarchy. [ citation needed ] The female determinant of the SI response in Brassica , is a transmembrane protein termed SRK , which has an intracellular kinase domain, and a variable extracellular domain.