|Common Name: Maca|
|Genus: Lepidium meyenii|
|Species: Lepidium meyenii|
|（ Ref： https://www.zamnesia.com/content/268-effects-of-maca )||
Lepidium meyenii is an herbaceous, low-growing, rosette-like plant of frilly leaves with an enlarged tuberous fleshy underground organ formed by the taproot and the lower part of the hypocotyl. The plant grows to a height of 10-20cm. It’s root is 3-5cm in diameter and 15 cm in circumference at the widest point. Authorities do not agree whether the plant is a biennial or perennial plant. The plant matures about 8 months after planting.
( Ref: wikipedia )
Figture: Representative members in different lineages of Brassicaceae family. Phylogenetic tree was generated from 464 single-copy orthologous genes using the maximum-likelihood method. The scale bar shows the expected number of amino acid substitutions per residue.
Figture: (A) Cultivation area of maca in the central Andes region (circled in red).
(B) Rapid elevation of the Andes Mountains between 5 and 10 million years ago.
|Estimated genome size (Mb)||751|
|De novo assembly size (Mb)||743|
|No. of N50 contigs||2418|
|N50 contig length (bp)||81780|
|No. of N50 scaffolds||92|
|N50 scaffold length (bp)||2420765|
|No. of N90 contigs||122974|
|N90 contig length (bp)||175|
|No. of N90 scaffolds||93194|
|N90 scaffold length (Mb)||175|
|Transposable elements content||47.65%|
|Gene annotation Statistics|
|Total no. of protein-coding genes||96 417|
|Total no. of exons||475645|
|Average no. of exons per gene||4.93|
|Average exon size (bp)||234.92|
|Average intron length (bp)||222.76|
|Total no. of non-protein-coding genes||18885|
Figture: Phylogenetic tree and divergence time of five plant species. Phylogenetic tree was generated from 503 single-copy orthologous genes using the maximum-likelihood method. Time (Ma) is listed in brackets, and corresponds to the fossil time scale. The time range for divergence is shown in gray areas. Approximate positions of the paleo-WGD events (a, b, g) are indicated by inverted triangles. Approximate positions of the species-specific WGD events are indicated by squares.
(Ref:Jing Zhang et al.,2016)
Figture: Schematic graph of the collinear relationships between A. thaliana chromosome 1 and maca scaffolds. See Supplemental Figure 5 for additional collinear relationship graphs.