Early Generation Evaluation in Antirrhinum majus for Prediction of Cutflower Postharvest Longevity

Martin, William J.; Stimart, Dennis P.

doi:10.21273/jashs.128.6.0876

Cited by 4 publications

(6 citation statements)

References 24 publications

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“…Midparent-offspring regression resulted in a heritability estimate for PHL of 0.54 ( Fig. 1 and Table 1), slightly higher than previous ANOVA-derived estimates of 0.41 (Martin and Stimart, 2003), and 0.30 (Schroeder and Stimart, 2001). Heritability of F 5 × F 5 progeny PHL derived from ANOVA was 0.77 ± 0.11 (Table 1) and comparable to A. majus inbred lines (0.79 to 0.81; Martin and Stimart, 2005), Lilium (0.74; van der Meulen-Muisers et al, 1999), and R. ×hybrida (0.80; De et al, 1999).…”

Section: Resultscontrasting

confidence: 55%

“…Not all cross combinations could be evaluated due to resource limitations. Thus, a sample of 158 F 5 × F 5 progeny was chosen among and within PHL categories for evaluation of PHL and quality traits in Fall 2002and 2003. In Fall 2002, 79 F 5 × F 5 progeny, P1, P2, and F 1 (P1 × P2) were grown under standard forcing procedures (Rogers, 1992) in a polyethylene greenhouse at the Univ.…”

Section: Methodsmentioning

confidence: 99%

“…A minimum of two to four genes appear to control the trait (Schroeder, 2000). PHL heritability estimates were 0.30 in F 2 , BC 1 , and BC 2 generations (Schroeder, 2000), 0.41 in F 2 × F 2 progeny (Martin and Stimart, 2003), 0.79 in F 3 inbred lines, and 0.81 in F 4 and F 5 inbred lines (Martin and Stimart, 2005). The increase in heritability with further inbreeding suggests genetically pure breeding material will provide a better prediction of progeny performance.…”

mentioning

confidence: 99%

“…Although PHL is an important trait, cut fl owers must possess additional quality traits for consumers (van der Meulen-Muisers and van Oeveren, 1997). Signifi cant phenotypic (Martin andStimart, 2003 andSchroeder and Stimart, 2001) and genotypic (Martin and Stimart, 2005) correlations of PHL with quality traits of A. majus are found in early generation crosses, backcrosses and inbred lines. This study used F 5 × F 5 progeny of A. majus to estimate heritability for PHL and quality traits; to estimate phenotypic and genotypic correlation coeffi cients of quality traits with PHL; and to compare results with previous studies.…”

mentioning

confidence: 99%

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Genetics of Postharvest Longevity and Quality Traits in Late Generation Crosses of Antirrhinum majus L.

Weber¹,

Martin²,

Stimart³

2005

jashs

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Progeny of 158 F5 × F5 crosses of Antirrhinum majus (snapdragon) selected within and among cut flower postharvest longevity (PHL) categories (long = 12.6-16.8 days, middle = 9.3-12.1 days, and short = 4.8-8.9 days) were evaluated for PHL and quality traits. Results were compared with previous studies involving F2 × F2 progeny, and F3, F4, and F5 inbred lines. Heritability of PHL in F5 × F5 progeny (0.77 ± 0.11) agrees with that of inbred lines (0.79 to 0.81) but is higher than in F2 × F2 progeny (0.41). Therefore, selection for increased PHL should progress more rapidly and predictably through application of inbred lines rather than F2 individuals. Significant differences between F5 × F5 progeny PHL categories confirm PHL is heritable with a significant additive component. Heritabilities of quality traits in A. majus are high, suggesting selection for quality traits should progress without difficulty. Phenotypic and genotypic correlations of PHL with quality traits are not consistently significant across PHL studies in A. majus. Discrepancies between studies suggest most traits may not be correlated to PHL or are subject to strong environmental influence.

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Section: Resultscontrasting

confidence: 55%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Genetics of Postharvest Longevity and Quality Traits in Late Generation Crosses of Antirrhinum majus L.

Weber¹,

Martin²,

Stimart³

2005

jashs

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“…Fewer studies have explored the heritability of intact floral longevity, which would be more directly relevant to the evolution of floral longevity in wild species. Of those, two demonstrated significant additive genetic effects underlying variation in intact floral longevity (Krahl & Randle, ; Howard et al ., ), while a third showed that postharvest floral longevity is positively correlated to intact floral longevity in at least one species (Martin & Stimart, ). Thus, from this limited evidence, we know that a response to selection on floral longevity is possible in at least some horticultural species.…”

Section: Introductionmentioning

confidence: 99%

Context‐dependency of resource allocation trade‐offs highlights constraints to the evolution of floral longevity in a monocarpic herb

Spigler

Woodard

2018

New Phytologist

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Summary Floral longevity is a critical component of floral display, yet there is a conspicuous paucity of empirical research on its evolution within species. Evolutionary models of floral longevity are grounded in resource allocation theory and propose that selection acts on heritable variation to optimize longevity in light of competing floral construction and maintenance costs. Key assumptions remain untested within wild species. We measured maximum floral longevity alongside protandry, flower size, flower number and flowering rate across families of the monocarpic herb Sabatia angularis grown under high and low resources. We evaluated genetic variation, plasticity and correlations between display traits, including fundamental resource–allocation trade‐offs and their interactions with resource availability. All display traits showed significant genetic variation. Resource availability influenced mean floral longevity and flower number, with genetic variation in these responses. Importantly, both floral longevity–flower number and flower number–size trade‐offs were significant and stronger under low resources. This study reinforces the application of resource allocation theory to floral display trait evolution. Our work highlights the context‐dependency of trade‐offs and the potential importance of plasticity in resource allocation, with plants investing in the construction of new flowers at faster rates when resources are high rather than in the maintenance of longer‐lived flowers.

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Genetic analysis and associated SRAP markers for flowering traits of chrysanthemum (Chrysanthemum morifolium)

Zhang

Chen

et al. 2010

Euphytica

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The inheritance of two flowering traits of chrysanthemum, initial blooming time and the duration of flowering, was investigated using segregation within an F 1 population derived from a cross between the autumn-flowering 'Yuhualuoying' and the summer-flowering 'Aoyunhanxiao' cultivars. The analysis, based on a single segregating generation and the major gene plus polygene mixed inheritance model, showed that the inheritance of both traits was compatible with the presence of two pairs of major genes displaying additivity-dominance-epistasis, with additivity predominating. As the heritability of both pairs of major genes was high (initial blooming time *65%, duration of flowering *72%), it should be possible to select for both traits in early breeding generations. A marker-trait association analysis based on sequence-related amplified polymorphism (SRAP) genotyping uncovered 10 (initial blooming time) and 12 (duration of flowering) markers significantly associated with phenotype, cumulatively explaining, respectively, 46 and 54% of the variation. Some potentially useful markers were identified.

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Early Generation Evaluation in Antirrhinum majus for Prediction of Cutflower Postharvest Longevity

Cited by 4 publications

References 24 publications

Genetics of Postharvest Longevity and Quality Traits in Late Generation Crosses of Antirrhinum majus L.

Genetics of Postharvest Longevity and Quality Traits in Late Generation Crosses of Antirrhinum majus L.

Context‐dependency of resource allocation trade‐offs highlights constraints to the evolution of floral longevity in a monocarpic herb

Genetic analysis and associated SRAP markers for flowering traits of chrysanthemum (Chrysanthemum morifolium)

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