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A heterochromatic knob reducing the flowering time in maize

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Title A heterochromatic knob reducing the flowering time in maize
 
Creator Carvalho, Renata Flávia
Aguiar-Perecin, Margarida Lopes Rodrigues
Clarindo, Wellington Ronildo
Fritsche-Neto, Roberto
Mondin, Mateus
 
Subject maize
genomes
flowering
dna
 
Description Maize flowering time is an important agronomic trait, which has been associated with variations in the genome size and heterochromatic knobs content. We integrated three steps to show this association. Firstly, we selected inbred lines varying for heterochromatic knob composition at specific sites in the homozygous state. Then, we produced homozygous and heterozygous hybrids for knobs. Second, we measured the genome size and flowering time for all materials. Knob composition did not affect the genome size and flowering time. Finally, we developed an association study and identified a knob marker on chromosome 9 showing the strongest association with flowering time. Indeed, modelling allele substitution and dominance effects could offer only one heterochromatic knob locus that could affect flowering time, making it earlier rather than the knob composition.
 
Date 2022-02-24
2022-12-22T08:20:59Z
2022-12-22T08:20:59Z
 
Type Journal Article
 
Identifier Carvalho, Renata Flávia, Aguiar-Perecin, Margarida Lopes Rodrigues, Clarindo, Wellington Ronildo, Fritsche-Neto, Roberto and Mondin, Mateus. 2022. A heterochromatic knob reducing the flowering time in maize. Frontiers in Genetics 12:799681.
1664-8021
https://hdl.handle.net/10568/126226
https://doi.org/10.3389/fgene.2021.799681
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format 13 p.
application/pdf
 
Source Frontiers in Genetics