The Correlation between Gene Effects and Mid-Parent Heterosis in Selected Crops

Simple item page
dc.contributor.authorBnejdi, F.en_US
dc.contributor.authorRassaa, N.en_US
dc.contributor.authorSaadoun, M.en_US
dc.contributor.authorGazzah, M. Elen_US
dc.date.accessioned2019-12-06T09:17:19Z
dc.date.available2019-12-06T09:17:19Z
dc.date.issued2018-02
dc.description.abstractThis study was conducted to investigate the relationship between heterosis and gene effects estimated by the generation mean analysis. Nine traits with 74 cases of combinations cross-sit and cross- abiotic or biotic stress levels were assessed in three crops (durum wheat, pepper, and oat) and evaluated by lines crosses analysis. Trait performances of the F1 hybrid showed evident mid-parent heterosis varying from 0.6% to 89% for the 74 cases investigated. Results of Generation mean analysis revealed that the additive-dominance model was demonstrated adequate in 7 cases. Therefore the epistatic model was found appropriate in 67 cases. Analysis of correlations between gene effects estimated by the generation mean analysis revealed that heterosis was not correlated to additive, dominance or epistasis effects. Therefore, the majority of geneticists considered the non-additives effects as the genetic basis of heterosis. Thus, the lower correlations obtained between heterosis and non-additives effects were due to the bias of the classical approach’s models of genetic quantitative. In fact, many assumptions were proposed to develop this model. To conclude, non-additives results are apparently of great importance in the inheritance of quantitative traits and their roles in the heterosis expression are not to discuss. However, the quantitative genetic interpretation of mid-parent heterosis as a function of genetic effects was not possible basing on the model of line crosses analyses.en_US
dc.identifier.affiliationsLaboratory of Biodiversity, Biotechnology and Climatic Change, Département des Sciences Biologiques, Faculté des Sciences de Tunis, 2092, El Manar I, Tunisie.en_US
dc.identifier.affiliationsLaboratory of Crop Physiology, Ecole supérieure d’Agriculture du Kef, 7100, Tunisie.en_US
dc.identifier.affiliationsLaboratory Plant Protection, Institut National de la Recherche Agronomique de Tunisie (INRAT), Rue Hedi Karray, 2049 Ariana, Tunis, Tunisia.en_US
dc.identifier.affiliationsLaboratory of Biodiversity, Biotechnology and Climatic Change, Département des Sciences Biologiques, Faculté des Sciences de Tunis, 2092, El Manar I, Tunisie.en_US
dc.identifier.citationBnejdi F., Rassaa N., Saadoun M., Gazzah M. El. The Correlation between Gene Effects and Mid-Parent Heterosis in Selected Crops. Annual Research & Review in Biology. 2018 Feb; 23(3): 1-6en_US
dc.identifier.issn2347-565X
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/187759
dc.languageenen_US
dc.publisherScience Domain Internationalen_US
dc.relation.issuenumber3en_US
dc.relation.volume23en_US
dc.source.urihttps://doi.org/10.9734/ARRB/2018/37094en_US
dc.subjectInheritanceen_US
dc.subjectnon-additive effectsen_US
dc.subjectheterosisen_US
dc.titleThe Correlation between Gene Effects and Mid-Parent Heterosis in Selected Cropsen_US
dc.typeJournal Articleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
arrb2018v23n3p1b.pdf
Size:
208.47 KB
Format:
Adobe Portable Document Format
Download
Collections
Annual Research & Review in Biology