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Analysis of the genetic control of β-carotene and l-ascorbic acid accumulation in an orange-brownish wild cherry tomato accession
dc.contributor.author | Adalid, Ana María | |
dc.contributor.author | Roselló, Salvador | |
dc.contributor.author | Valcárcel, Mercedes | |
dc.contributor.author | Nuez Viñals, Fernando | |
dc.date.accessioned | 2013-03-20T12:35:06Z | |
dc.date.available | 2013-03-20T12:35:06Z | |
dc.date.issued | 2012-03 | |
dc.identifier.citation | Euphytica (March 2012) 184, 2, p. 251-263 | ca_CA |
dc.identifier.issn | 1573-5060 | |
dc.identifier.uri | http://hdl.handle.net/10234/60346 | |
dc.description.abstract | An additive-dominance, additive × additive (ADAA) and genotype × environment interaction mix model was used to study the genetic control of β-carotene and l-ascorbic acid in six basic generations (P1, P2, F1, F2, BC1P1 and BC1P2) of tomato derived from the cross CDP8779 accession (Solanum lycopersicum L.) × CDP4777 accession (S. lycopersicum var. cerasiforme). The study was performed in two environments: (1) open field; (2) protected environment, consisting of hydroponic cultivation in a glasshouse. The results indicate that β-carotene accumulation was mainly additive (32.2% of the genetic component), with a small dominant component (4.2%) and an important additive × environment interaction contribution (63.6%). In target environments with moderate to high temperatures and no limiting radiation, this the expression additive × environment interaction could substantially enhance the β-carotene content. This trait showed also a high narrow-sense heritability (h 2 = 0.62). Ascorbic acid accumulation was also mainly additive (61.7% of the genetic component), with a minor additive epistatic component (21.5%). This epistatic effect caused a negative heterosis that reduced the positive main additive effect. Nevertheless, in the described target environments, the additive × environment interaction contribution (16.8%) may enhance the ascorbic acid content and compensate for the negative heterosis effect. The total narrow-sense heritability of this trait can be considered useful (h 2 = 0.52). In conclusion, the CDP4777 accession is a very interesting donor parent for the joint improvement of β-carotene (without diminishing lycopene content) and ascorbic acid content in commercial nutraceutical tomato breeding programmes; the F1 hybrids derived from this accession showed nearly 450% of the commonly reported average β-carotene content and close to 130% of the ascorbic acid content of the female parent. | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | Springer Netherlands | ca_CA |
dc.rights | Copyright Springer Science+Business Media B.V. 2011 | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | Solanum lycopersicum var cerasiforme | ca_CA |
dc.subject | Additive | ca_CA |
dc.subject | Dominance | ca_CA |
dc.subject | Epistasis | ca_CA |
dc.subject | Source of variability | ca_CA |
dc.subject | Breeding programmes | ca_CA |
dc.title | Analysis of the genetic control of β-carotene and l-ascorbic acid accumulation in an orange-brownish wild cherry tomato accession | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1007/s10681-011-0584-x | |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | ca_CA |
dc.relation.publisherVersion | http://link.springer.com/article/10.1007%2Fs10681-011-0584-x?LI=true | ca_CA |
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