What is the chromosome number of pigeon pea?
2n = 22
Although chromosome number can be reduced after polyploidization, the chromosome number of pigeonpea (2n = 22) relative to other diploid legumes, also supports the lack of a genome duplication event in pigeonpea (Supplementary Fig.
What are sequence contigs?
A contig–from the word “contiguous”–is a series of overlapping DNA sequences used to make a physical map that reconstructs the original DNA sequence of a chromosome or a region of a chromosome.
What is the botanical name of pigeon pea?
Cajanus cajanPigeon pea / Scientific name
Cajanus cajan (L) Millsp. (Sanskrit: Adhaki, Hindi: Arhar, English: Pigeon pea, Bengali: Tur) (family: Fabaceae) is the most important grain legume crop of rain-fed agriculture in semi-arid tropics.
What type of root does pigeon peas have?
Pigeonpea roots are thin with a deep-rooting taproot reaching up to 6 ft (2 m) in depth. This deep rooting system helps to improve water infiltration into the soil.
How do you sequence contigs?
Sequence contigs The bottom-up DNA sequencing strategy involves shearing genomic DNA into many small fragments (“bottom”), sequencing these fragments, reassembling them back into contigs and eventually the entire genome (“up”).
How many genes are in the genome?
An international research effort called the Human Genome Project, which worked to determine the sequence of the human genome and identify the genes that it contains, estimated that humans have between 20,000 and 25,000 genes.
How many genes do fruit fly have?
This contradicts comparisons between the numbers of genes in different organisms, which yield surprising results: humans have approximately 24,000 genes, but fruit flies are not far behind, with approximately 14,000 genes.
What is the origin of pigeon pea?
Origin. The cultivation of the pigeon pea dates back to at least 3,500 years ago. The centre of origin is probably peninsular India, where the closest wild relatives (Cajanus cajanifolia) occur in tropical deciduous woodlands.
Why is it called pigeon peas?
The pigeon pea (Cajanus cajan), whose cultivation can be traced back more than 3,500 years, is known by a variety of names: Congo pea, Angola pea, red gram — postmarks of its travels as it spread from eastern India to Africa and the Middle East. In Barbados, it was used to feed pigeons.