A heterochromatic knob reducing the flowering time in maize
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 i...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Frontiers Media
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/126226 |
| _version_ | 1855539412534820864 |
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| author | Carvalho, Renata Flávia Aguiar-Perecin, Margarida Lopes Rodrigues Clarindo, Wellington Ronildo Fritsche-Neto, Roberto Mondin, Mateus |
| author_browse | Aguiar-Perecin, Margarida Lopes Rodrigues Carvalho, Renata Flávia Clarindo, Wellington Ronildo Fritsche-Neto, Roberto Mondin, Mateus |
| author_facet | Carvalho, Renata Flávia Aguiar-Perecin, Margarida Lopes Rodrigues Clarindo, Wellington Ronildo Fritsche-Neto, Roberto Mondin, Mateus |
| author_sort | Carvalho, Renata Flávia |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| 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. |
| format | Journal Article |
| id | CGSpace126226 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Frontiers Media |
| publisherStr | Frontiers Media |
| record_format | dspace |
| spelling | CGSpace1262262025-12-08T10:29:22Z A heterochromatic knob reducing the flowering time in maize Carvalho, Renata Flávia Aguiar-Perecin, Margarida Lopes Rodrigues Clarindo, Wellington Ronildo Fritsche-Neto, Roberto Mondin, Mateus maize genomes flowering dna 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. 2022-02-24 2022-12-22T08:20:59Z 2022-12-22T08:20:59Z Journal Article https://hdl.handle.net/10568/126226 en Open Access application/pdf Frontiers Media 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. |
| spellingShingle | maize genomes flowering dna Carvalho, Renata Flávia Aguiar-Perecin, Margarida Lopes Rodrigues Clarindo, Wellington Ronildo Fritsche-Neto, Roberto Mondin, Mateus A heterochromatic knob reducing the flowering time in maize |
| title | A heterochromatic knob reducing the flowering time in maize |
| title_full | A heterochromatic knob reducing the flowering time in maize |
| title_fullStr | A heterochromatic knob reducing the flowering time in maize |
| title_full_unstemmed | A heterochromatic knob reducing the flowering time in maize |
| title_short | A heterochromatic knob reducing the flowering time in maize |
| title_sort | heterochromatic knob reducing the flowering time in maize |
| topic | maize genomes flowering dna |
| url | https://hdl.handle.net/10568/126226 |
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