What is B73 maize?
What is B73 maize?
B73 (maize), a long-established maize genome.
How big is the maize genome?
Although it is a medium-sized grass genome, at 2.4 Gb the maize genome is large compared to other sequenced plants and so will require significant funding to sequence.
How many chromosomes does maize have?
20
All 10 chromosomes of maize (Zea mays, 2n = 2x = 20) were recovered as single additions to the haploid complement of oat (Avena sativa, 2n = 6x = 42) among F1 plants generated from crosses involving three different lines of maize to eight different lines of oat.
What is the chromosome number of maize?
Maize and sorghum (Sorghum bicolor) have the same number of chromosomes (2n = 20).
How many somatic chromosomes are present in maize?
Hence, in maize, the chromosome number in the diploid meiocytes (2n) is 20. The gametes or the reproductive cells (n) have 10 chromosomes. Since a somatic cell is diploid (2n) has chromosomes from two sets of gametes inherited from each parent, the total number of chromosomes in a somatic cell is 20.
Is maize diploid or haploid?
Maize is one of the most significant grains cultivated all over the world. Doubled-haploid is an important technique in terms of advanced maize breeding, modern crop improvement and genetic programs, since this technique shortens the breeding period and increases breeding efficiency.
What type of pollination occurs in maize?
cross pollinated
Maize is predominantly cross pollinated. Wind pollination (Anemophily) is the general rule. Pollination by insects also takes place to certain extent.
What is the ploidy level of corn?
diploid
Maize, like humans and many other organisms, is diploid – each individual cell in the organism contains two sets of chromosomes, one from each parent (some plants, such as wheat, are polyploid; where each cell has more than two sets of chromosomes).
How many chromosomes are present in Meiocytes of maize?
20 chromosomes
In maize, a meiocyte has 20 chromosomes.
How many chromosomes are present in Scutellum of maize?
Hence, in maize, the chromosome number in the diploid meiocytes (2n) is 20. The gametes or the reproductive cells (n) have 10 chromosomes. Since a somatic cell is diploid (2n) has chromosomes from two sets of gametes inherited from each parent, the total number of chromosomes in a somatic cell is 20. Q1.
Is maize a diploid?
Although maize is diploid, early studies by McClintock (3, 4) demonstrated the association of nonhomologous chromosomes during meiosis.
How does maize pollinate?
Maize (called corn in some parts of the world) is pollinated by wind. The male anthers let go of their pollen and it blows over to a nearby female flower on another corn plant.