Inheritance of lethal gene ‘luteus-Pa’ from cacao progenies obtained by self and cross-fertilization
| Autor: | Zurel N Meza S, Luis Fernando García Carrión, Patricia Vanessa García Rodríguez |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Revista Facultad Nacional de Agronomía Medellín, Vol 70, Iss 2, Pp 8123-8128 (2017) |
| Druh dokumentu: | article |
| ISSN: | 0304-2847 2248-7026 |
| DOI: | 10.15446/rfna.v70n2.64502 |
| Popis: | With the aim to study the inheritance of lethal gene ‘luteus-Pa’ in three derivated progenies from self and cross-fertilization of cacao (Theobroma cacao L) varieties, a study was carried out during January to September 2013. As genetic material C-25, S-5 y Pa-150 varieties were utilized and this one were self and cross pollinated and their progenies were divided in two replicates with 100 seeds each and sowed in plastic recipients containing a substrate 2:1(soil: sand). In order to contrast the observed segregation with its expected homologous 3:1 (monogenic inheritance), the Chi-square (X2) test was utilized. The results shown that only one from self-fertilized progeny of C-25 variety exhibited the mendelian segregation 3:1 in both replicates, so that it lead to infer this one is carrier of lethal gene ‘luteus-Pa’ in heterozygote condition whereas that the progeny from Pa-150 x C-25 cross no found none lethal seedling and submitted to Chi-square (X2) test it could be to infer this one no segregate in the proportion 3:1 therefore, the Pa-150 variety is no carrier of this lethal gene. A better comprehension on photobiological origin, supported by molecular markers and the functional genomics of this mutant can help to identify and understand the factors involve in the photosynthetic mechanisms. |
| Databáze: | Directory of Open Access Journals |
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