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Genome analyses reveal population structure and a purple stigma color gene candidate in finger millet

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Title Genome analyses reveal population structure and a purple stigma color gene candidate in finger millet
Not Available
 
Creator K.M. Devos
P. Qi
B.A. Bahri
D.M. Gimode
K. Jenike
S.J. Manthi
D. Lule
T. Lux
L. Martinez-Bello
T.H. Pendergast
C. Plott
D. Saha
G.S. Sidhu
A. Sreedasyam
et al.
 
Subject Finger millet
Genome sequence
Genotyping by sequencing
Single nucleotide polymorphism
Genetic diversity
Purple stigma coloration
Chromosomal relationship of grasses
 
Description Not Available
Finger millet is a key food security crop widely grown in eastern Africa, India and Nepal. Long considered a ‘poor man’s crop’, finger millet has regained attention over the past decade for its climate resilience and the nutritional qualities of its grain. To bring finger millet breeding into the 21st century, here we present the assembly and annotation of a chromosome-scale reference genome. We show that this ~1.3 million years old allotetraploid has a high level of homoeologous gene retention and lacks subgenome dominance. Population structure is mainly driven by the differential presence of large wild segments in the pericentromeric regions of several chromosomes. Trait mapping, followed by variant analysis of gene candidates, reveals that loss of purple coloration of anthers and stigma is associated with loss-of-function mutations in the finger millet orthologs of the maize R1/B1 and Arabidopsis GL3/EGL3 anthocyanin regulatory genes. Proanthocyanidin production in seed is not affected by these gene knockouts.
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Date 2023-10-26T14:34:07Z
2023-10-26T14:34:07Z
2023-06-21
 
Type Journal
 
Identifier Devos, K.M., Qi, P., Bahri, B.A.,Gimode, D.M., ... Saha, D., et al. (2023). Genome analyses reveal population structure and a purple stigma color gene candidate in finger millet. Nature Communications. 14(1): 3694. https://doi.org/10.1038/s41467-023-38915-6
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http://krishi.icar.gov.in/jspui/handle/123456789/80833
 
Language English
 
Relation Not Available;
 
Publisher Nature