|
|
|
|
|
| Rosado,Tatiana Barbosa; Tomaz,Rafael Simões; Rocha,Rodrigo Barros; Rosado,Antônio Marcos; Alves,Alexandre Alonso; Araújo,Elza Fernandes de; Alfenas,Acelino Couto; Cruz,Cosme Damião. |
| The objective of this work was to verify the existence of a lethal locus in a eucalyptus hybrid population, and to quantify the segregation distortion in the linkage group 3 of the Eucalyptus genome. A E. grandis x E. urophylla hybrid population, which segregates for rust resistance, was genotyped with 19 microsatellite markers belonging to linkage group 3 of the Eucalyptus genome. To quantify the segregation distortion, maximum likelihood (ML) models, specific to outbreeding populations, were used. These models consider the observed marker genotypes and the lethal locus viability as parameters. The ML solutions were obtained using the expectation‑maximization algorithm. A lethal locus in the linkage group 3 was verified and mapped, with high confidence,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eucalyptus; Gametic selection; Genetic mapping; QTL; Rust resistance; Segregation distortion. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000900008 |
| |
|
|
| Arriagada, Osvin; Mora, Freddy; Quitral, Yerko; Del Pozo, Alejandro. |
| Barley (Hordeum vulgare L.) is considered a good genetic model for evaluating mechanisms of drought tolerance, and it is the most important threat to crop production worldwide. This study aimed to identify single-nucleotide polymorphisms (SNPs) associated with agronomic, morphological and physiological traits in a population of 137 recombinant chromosome substitution lines (RCSL) of barley, which were evaluated under rainfed conditions, in Cauquenes, southern Chile (35°58’ S, 72°17’ W). The annual precipitation was 299 mm during the growing season. Fifty-two significant QTLs were detected for the studied traits, which explained between 5% and 13.8% of the phenotypic variation. A genomic region on chromosome 1H (that comprises SNPs 2711-234 and 1923-265)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hordeum vulgare; Mixed model; Recombinant chromosome substitution lines; Segregation distortion. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/32612 |
| |
|
| |
|
| |
|
|
|
