Breeding Tomato for Quality and Processing Attributes

Berry, S. Z.; Uddin, Md. Romij

doi:10.1007/978-3-642-84275-7_15

Cited by 13 publications

(6 citation statements)

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“…For tomato products that are sold on the basis of solids content, the higher the solids of the raw products the greater the value of crop yields. For example, an increase in solids of just 1% represents ∼ 20% increase in yield of certain processed products [ 106 , 107 ]. High sugar content also increases the overall taste and flavor of the fresh fruit [ 108 , 109 ].…”

Section: Introductionmentioning

confidence: 99%

“…For these reasons, increasing fruit solids content has been the focus of numerous tomato breeding programs. Estimates of the SS contents of the commercial cultivars of tomato range between 4.6% (mostly in fresh market) and 6.3% (mostly in processing) of the fresh weight [ 106 ]. However, accessions have been identified within related wild species of tomato, including L. pimpinellifolium , L. chmielewskii and L. cheesmanii , with much higher concentrations ( ∼ 9–15%) of SS [ 105 , 110 ].…”

Section: Introductionmentioning

confidence: 99%

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Genome Mapping and Molecular Breeding of Tomato

Foolad

2007

International Journal of Plant Genomics

326

276

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The cultivated tomato, Lycopersicon esculentum, is the second most consumed vegetable worldwide and a well-studied crop species in terms of genetics, genomics, and breeding. It is one of the earliest crop plants for which a genetic linkage map was constructed, and currently there are several molecular maps based on crosses between the cultivated and various wild species of tomato. The high-density molecular map, developed based on an L. esculentum × L. pennellii cross, includes more than 2200 markers with an average marker distance of less than 1 cM and an average of 750 kbp per cM. Different types of molecular markers such as RFLPs, AFLPs, SSRs, CAPS, RGAs, ESTs, and COSs have been developed and mapped onto the 12 tomato chromosomes. Markers have been used extensively for identification and mapping of genes and QTLs for many biologically and agriculturally important traits and occasionally for germplasm screening, fingerprinting, and marker-assisted breeding. The utility of MAS in tomato breeding has been restricted largely due to limited marker polymorphism within the cultivated species and economical reasons. Also, when used, MAS has been employed mainly for improving simply-inherited traits and not much for improving complex traits. The latter has been due to unavailability of reliable PCR-based markers and problems with linkage drag. Efforts are being made to develop high-throughput markers with greater resolution, including SNPs. The expanding tomato EST database, which currently includes ∼214 000 sequences, the new microarray DNA chips, and the ongoing sequencing project are expected to aid development of more practical markers. Several BAC libraries have been developed that facilitate map-based cloning of genes and QTLs. Sequencing of the euchromatic portions of the tomato genome is paving the way for comparative and functional analysis of important genes and QTLs.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Genome Mapping and Molecular Breeding of Tomato

Foolad

2007

International Journal of Plant Genomics

326

276

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“…Total soluble solids (TSS) and ascorbic acid content have been recognized as the most desirable attributes in tomato for processing industry. The increase of 1% TSS in fruits results to increase 20% recovery of processed products [1]. High ascorbic acid content in addition to improving the nutrition also helps in the better retention of natural colour and flavour of the tomato products.…”

Section: Introductionmentioning

confidence: 99%

Combining Ability Analysis to Identify Superior F1 Hybrids for Yield and Quality Improvement in Tomato (Solanum lycopersicum L.)

Shankar¹,

Reddy²,

Sujatha³

et al. 2013

Agrotechnol

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Combining ability and gene effects for yield and quality traits in tomato were studied by involving twenty four cross combinations obtained from crossing eight diverse lines with three testers in line×tester mating fashion. The analysis of variance revealed that the variance due to line×tester effects were highly significant for all the traits except lycopene content under study. Combining ability analysis revealed that magnitude of Specific Combining Ability (SCA) variance was greater than General Combining Ability (SCA) variance suggesting the predominance of non-additive gene action for yield per plant, pericarp thickness, TSS, titrable acidity, lycopene and shelf life. The degree of dominance revealed that over dominance is the cause of heterosis for these traits. Based on gca effects of parents, the lines LE-62 and LE-53 and the testers Arka Meghali and Arka Vikas were good general combiners for most of the traits under study. The crosses viz., EC-157568×Arka Vikas, EC-163611×Arka Alok, LE-62×Arka Alok and LE-64×Arka Vikas were found to be superior specific combiners for yield per plant. For quality traits, the cross EC-165749×Arka Alok was also superior specific combiner for yield per plant, TSS, ascorbic acid and shelf life and the cross EC-157568×Arka Alok was superior specific combiner for TSS, titrable acidity and lycopene.

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“…One percent increase in T.S.S. content of fruits results in 20 per cent increase in recovery of processed product (Berry and Uddin, 1991).These results are in dis agreement with the findings of (Hassan et al, 2000;Parattaet al, 2003;Khalf-Allah et al ,2005;Singh et al ,2005;Kumar et al ,2006;Singh et al ,2007;Singh, et al ,2008;Shankarappaet al ,2008;Middle East J. Agric. Res., 8(4): 1040-1053EISSN: 2706-7955 ISSN: 2077-4605 DOI: 10.36632/mejar/2019 1045 Middle East J.…”

Section: Heterosismentioning

confidence: 99%

Heterosis, Nature of Gene Action for Yield and Its Components in Tomato (Lycopersicon esculentum Mill.)

2019

Middle East J. Agric. Res.

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The present experiment was performed to classify best combiner parents and cross combinations for developing accomplished hybrids for yield and quality components in tomato, using half diallel analysis for five parents and ten hybrids including; Super Marmande, Peto 86, Super strain B, Edkawy and Red Star. The results indicated that heterosis over high parent gave significant values in most crosses. The combinations of good combiner parental cultivar and best hybrids for each character were estimated according to the best GCA and SCA. Specifically, all the studied traits showed highly significant GCA and SCA values. Therefore, additive and non-additive gene actions were vital in the expression of these traits. Concerning general combining ability, it was found that ̔ Red Star̕ was the best combiner for plant height, number of branches, fruit length, number of fruit locules, and total fruit weight;̔ Peto 86̕ for leaf area index, fruit shape index and number of fruits per plant, ̔ Super strain B ̕ for T.S.S. and total fruit yield, and ̔ Edkawy̕ for number of leaves, fruit diameter, number of fruit locules and average fruit weight. The cross P1xP2 was found to be the best combination for plant height, (P1 x P3) for number of branches/ plant, (P2 x P5) for No. of leaves / plant, (P 1 x P 5) for total fruit yield and number of fruit per plant, (P 2 x P 3) for fruit shape index and leaf area index ,(P2 x P4) for fruit weigh/ plant, (P2 x P5) for fruit length and number of leaves / plant, (P3 x P4) for fruit diameter, (P3 x P5) for number of fruit locules and (P4 x P5) was the best combination for T.S.S. Effects of additive gene appeared to be more important than non-additive gene effect as reflected on plant height, No. of leave, fruit length, fruit diameter, T.S.S, No. of fruit locules, average fruit weight, No. of fruit / plant, and total fruit weight. However, it was found that nonadditive gene effect appeared to play important roles than additive effect for No. of branches and fruit shape index. In addition, both broad and narrow sense heritability values were high for all studied traits, indicating that all traits were highly heritable.

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Breeding Tomato for Quality and Processing Attributes

Cited by 13 publications

References 0 publications

Genome Mapping and Molecular Breeding of Tomato

Genome Mapping and Molecular Breeding of Tomato

Combining Ability Analysis to Identify Superior F1 Hybrids for Yield and Quality Improvement in Tomato (Solanum lycopersicum L.)

Heterosis, Nature of Gene Action for Yield and Its Components in Tomato (Lycopersicon esculentum Mill.)

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