Alcobaça allele and genotypic backgrounds affect yield and fruit shelf life of tomato hybrids
Post-harvest shelf life of tomato fruit may be increased by deploying mutant alleles which affect the natural ripening process and/or by a favorable genotypic background. Among the several ripening mutant genes, alcobaça (alc) has proved to be highly efficient in increasing shelf life of commercial tomato fruits, especially in heterozygosis, a state at which no limiting deleterious effects upon fruit color occur. The effects of heterozygosity in the alcobaça locus (alc+/alc) on yield and fruit quality traits of tomato hybrids with three genotypic backgrounds. We evaluated three pairs of hybrids obtained from crosses between the near-isogenic pollen source lines Flora-Dade (alc+/alc+) and TOM-559 (alc/alc), and three maternal lines (Stevens, NC-8276 and Piedmont). The six treatments were factorial combinations of two different status in the alc locus (alc+/alc and alc+/alc+) versus three different genotypic backgrounds (maternal lines). Fruits were harvested at the breaker stage of maturation and stored in shelves at 21ºC for 14 days. Yield and fruit quality traits were then evaluated. Regardless of the background, the alc allele in heterozygosis (alc+/alc) did not interfere with the total yield, commercial yield, average mass per fruit, average mass per commercial fruit, fruit shape, or with fruit peduncular scar diameter. The alc+/alc genotype reduced the rate of firmness loss and delayed evolution of the red color of the fruit, thus contributing to an increase of the post-harvest shelf life for all three genotypic backgrounds.
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Escola Superior de Agricultura "Luiz de Queiroz"
2003
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oai:scielo:S0103-901620030002000102003-05-15Alcobaça allele and genotypic backgrounds affect yield and fruit shelf life of tomato hybridsDias,Túlio José MendesMaluf,Wilson RobertoFaria,Marcos VenturaFreitas,Joelson André deGomes,Luiz Antonio AugustoResende,Juliano Tadeu VilelaAzevedo,Sebastião Márcio de Lycopersicon esculentum alcobaça ripening mutant long shelf-life Post-harvest shelf life of tomato fruit may be increased by deploying mutant alleles which affect the natural ripening process and/or by a favorable genotypic background. Among the several ripening mutant genes, alcobaça (alc) has proved to be highly efficient in increasing shelf life of commercial tomato fruits, especially in heterozygosis, a state at which no limiting deleterious effects upon fruit color occur. The effects of heterozygosity in the alcobaça locus (alc+/alc) on yield and fruit quality traits of tomato hybrids with three genotypic backgrounds. We evaluated three pairs of hybrids obtained from crosses between the near-isogenic pollen source lines Flora-Dade (alc+/alc+) and TOM-559 (alc/alc), and three maternal lines (Stevens, NC-8276 and Piedmont). The six treatments were factorial combinations of two different status in the alc locus (alc+/alc and alc+/alc+) versus three different genotypic backgrounds (maternal lines). Fruits were harvested at the breaker stage of maturation and stored in shelves at 21ºC for 14 days. Yield and fruit quality traits were then evaluated. Regardless of the background, the alc allele in heterozygosis (alc+/alc) did not interfere with the total yield, commercial yield, average mass per fruit, average mass per commercial fruit, fruit shape, or with fruit peduncular scar diameter. The alc+/alc genotype reduced the rate of firmness loss and delayed evolution of the red color of the fruit, thus contributing to an increase of the post-harvest shelf life for all three genotypic backgrounds.info:eu-repo/semantics/openAccessEscola Superior de Agricultura "Luiz de Queiroz"Scientia Agricola v.60 n.2 20032003-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000200010en10.1590/S0103-90162003000200010 |
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Dias,Túlio José Mendes Maluf,Wilson Roberto Faria,Marcos Ventura Freitas,Joelson André de Gomes,Luiz Antonio Augusto Resende,Juliano Tadeu Vilela Azevedo,Sebastião Márcio de |
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Dias,Túlio José Mendes Maluf,Wilson Roberto Faria,Marcos Ventura Freitas,Joelson André de Gomes,Luiz Antonio Augusto Resende,Juliano Tadeu Vilela Azevedo,Sebastião Márcio de Alcobaça allele and genotypic backgrounds affect yield and fruit shelf life of tomato hybrids |
author_facet |
Dias,Túlio José Mendes Maluf,Wilson Roberto Faria,Marcos Ventura Freitas,Joelson André de Gomes,Luiz Antonio Augusto Resende,Juliano Tadeu Vilela Azevedo,Sebastião Márcio de |
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Dias,Túlio José Mendes |
title |
Alcobaça allele and genotypic backgrounds affect yield and fruit shelf life of tomato hybrids |
title_short |
Alcobaça allele and genotypic backgrounds affect yield and fruit shelf life of tomato hybrids |
title_full |
Alcobaça allele and genotypic backgrounds affect yield and fruit shelf life of tomato hybrids |
title_fullStr |
Alcobaça allele and genotypic backgrounds affect yield and fruit shelf life of tomato hybrids |
title_full_unstemmed |
Alcobaça allele and genotypic backgrounds affect yield and fruit shelf life of tomato hybrids |
title_sort |
alcobaça allele and genotypic backgrounds affect yield and fruit shelf life of tomato hybrids |
description |
Post-harvest shelf life of tomato fruit may be increased by deploying mutant alleles which affect the natural ripening process and/or by a favorable genotypic background. Among the several ripening mutant genes, alcobaça (alc) has proved to be highly efficient in increasing shelf life of commercial tomato fruits, especially in heterozygosis, a state at which no limiting deleterious effects upon fruit color occur. The effects of heterozygosity in the alcobaça locus (alc+/alc) on yield and fruit quality traits of tomato hybrids with three genotypic backgrounds. We evaluated three pairs of hybrids obtained from crosses between the near-isogenic pollen source lines Flora-Dade (alc+/alc+) and TOM-559 (alc/alc), and three maternal lines (Stevens, NC-8276 and Piedmont). The six treatments were factorial combinations of two different status in the alc locus (alc+/alc and alc+/alc+) versus three different genotypic backgrounds (maternal lines). Fruits were harvested at the breaker stage of maturation and stored in shelves at 21ºC for 14 days. Yield and fruit quality traits were then evaluated. Regardless of the background, the alc allele in heterozygosis (alc+/alc) did not interfere with the total yield, commercial yield, average mass per fruit, average mass per commercial fruit, fruit shape, or with fruit peduncular scar diameter. The alc+/alc genotype reduced the rate of firmness loss and delayed evolution of the red color of the fruit, thus contributing to an increase of the post-harvest shelf life for all three genotypic backgrounds. |
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Escola Superior de Agricultura "Luiz de Queiroz" |
publishDate |
2003 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000200010 |
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