What is maize germplasm?
We define ‘other’ germplasm to include inbred lines, land races, open pollinated varieties, exotic accessions, wild species (e.g., teosinte), cultivars, and other breeding stocks. The background of the stock is everything in these types of germplasm.
Is maize genetically diverse?
Maize is both phenotypically and genetically diverse. Sequence studies generally confirm the extensive genetic variability in modern maize is consistent with a lack of selection. For more than 6,000 years, Native Americans and modern breeders have exploited the tremendous genetic diversity of maize (Zea mays ssp.
Where do we get food grains from?
Some plants give us food grains. Wheat, rice, corn, jowar and bajra are food grains.
How many genes does maize have?
32,000 genes
The corn genome is a hodgepodge of some 32,000 genes crammed into just 10 chromosomes. In comparison, humans have 20,000 genes dispersed among 23 chromosomes. The $29.5 million maize sequencing project began in 2005 and is funded by the National Science Foundation and the U.S. departments of agriculture and energy.
How many genes are present in maize?
The 2.3-billion-base sequence — the largest genetic blueprint yet worked out for any plant species — includes more than 32,000 protein-coding genes spread across maize’s 10 chromosomes.
What is the meaning of genetic diversity?
Genetic Diversity refers to the range of different inherited traits within a species. In a species with high genetic diversity, there would be many individuals with a wide variety of different traits. Genetic diversity is critical for a population to adapt to changing environments.
Which of the following is most likely to be the direct result of lack of genetic diversity?
Which of the following is most likely to be the direct result of lack of genetic diversity in a food crop such as corn? Increased susceptibility on plant disease.
Is maize a grain?
Maize (/meɪz/ MAYZ; Zea mays subsp. mays, from Spanish: maíz after Taino: mahiz), also known as corn (North American and Australian English), is a cereal grain first domesticated by indigenous peoples in southern Mexico about 10,000 years ago.
What is the oldest grain?
Farro Monococcum
Farro Monococcum, also called Einkorn, Small Farro and Little Spelt is the oldest grain that exists today. Cooked farro looks and tastes like barley, but has a slightly more chewy texture and caramel notes.
How many chromosomes does a corn have?
10 chromosomes
The corn genome actually has 12,000 more genes than humans do and manages to stuff them onto 10 chromosomes (as opposed to humans’ 23).
https://www.youtube.com/watch?v=5H5GINGY1UM