Genetic Variance Components in Cultivated Strawberry

Watkins, R.; Spangelo, L. P. S.; Bolton, A. T.

doi:10.1139/g70-009

Cited by 10 publications

(8 citation statements)

References 2 publications

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“…The present study and also a large number of other studies suggested that different traits in strawberries are highly inheritable: fruit size (Comstock et al, 1958;Watkins et al, 1970;Spangelo et al, 1971;Whitaker et al, 2012;Mishra et al, 2015); plant yield, fruit number/plant, sugar content (Mishra et al, 2015). In essence, there is a strong potential to improve this traits by selection of the best parents.…”

Section: Discussionsupporting

confidence: 62%

Assessment of Combining Ability Effects for several Yield and Quality Traits in a Complete Diallel Cross of Strawberry (Fragaria × ananassa Duch.)

Ciulcă

Carp

Madoșă

et al. 2017

Not Bot Horti Agrobo

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Information on the inheritance of yield and quality traits is important for the selection of parents and breeding approaches to be adopted for the improvement of strawberry. The present study aimed to estimate the combining ability and gene effects for plant yield, fruits number/plant, fruit weight, pulp firmness and sugar content of strawberries in order to identify the best genitors and promising crosses, in 30 hybrids of six parents. The additive and non-additive gene action as well as the maternal effects was involved in the inheritance of the studied traits. For all traits, especially for fruit weight and plant yield, the additive gene action was more important than the non-additive one. The parents 'A1' and 'Alba' showed a higher concentration of favourable alleles for plant yield and fruits number, and they will allow the increase of plant yield when used as a donor of pollen and the increase of fruit number when used as a recipient of pollen. The variety 'Marmolada' was a good general combiner for sugar content, pulp firmness and fruit weight, especially when used as a female genitor. These parents could be used in hybridization in order to accelerate the genetic improvement of some yield and quality traits in strawberries. The cross 'Mira' × 'Onda' expressed desirable specific combining ability effects for yield traits and can be successfully use in strawberries breeding programs. In the case of 'Alba' × 'Clery' there is a high probability to select progenies with valuable yield traits associated with sweet fruits.

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Section: Discussionsupporting

confidence: 62%

Assessment of Combining Ability Effects for several Yield and Quality Traits in a Complete Diallel Cross of Strawberry (Fragaria × ananassa Duch.)

Ciulcă

Carp

Madoșă

et al. 2017

Not Bot Horti Agrobo

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“…A knowledge of the components of genetic variance would be valuable in enabling the plant breeder to make greater progress in strawberry improvement. Three such studies have been made (Comstock, Kelleher and Morrow, 1958;Watkins and Spangelo, 1968;Watkins, Spangelo and Bolton, 1970). For the interpretation .of the results of such studies it is essential to know whether disomic or tetrasomic inheritance occurs.…”

Section: Introductionmentioning

confidence: 99%

Chromosome Associations at Diakinesis in the Cultivated Strawberry

Mok¹,

Evans²

1971

Can. J. Genet. Cytol.

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“…When non-additive variance is present, the most appropriate breeding method is the one that exploits all genetic variance (Watkins and Spangelo, 1968). This method can be accomplished by evaluating a large number of parental combinations (progeny testing) for identifying and selecting the best combinations for the traits of interest.…”

Section: Resultsmentioning

confidence: 99%

Combining Ability Analysis for Selected Plant Traits in Gooseberry

Pluta

Žurawicz²,

Studnicki³

et al. 2014

J. Amer. Soc. Hort. Sci.

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Gooseberry (Ribes grossularia) belongs to a group of minor fruit crops. However, in some countries such as Poland, Germany, or Scandinavia, gooseberries are cultivated on large commercial plantations. Increasing gooseberry production is of high economic interest for many gooseberry growers. Therefore, targeted gooseberry breeding for high productivity and good fruit quality, combined with resistance/tolerance to biotic and abiotic stresses, is of particular interest. A half-diallel mating design (IV Griffing's method) among 10 parental cultivars of gooseberry producing 45 sibling families was constructed to study the general and specific combining ability (GCA and SCA, respectively) effects of selected traits, which include plant vigor, plant habit, shoot thorniness, yield, plant and fruit susceptibility to powdery mildew (Sphaerotheca mors-uvae), and plant susceptibility to leaf spot (Drepanopezizia ribis). The 45 seedling families were grown at the Experimental Orchard belonging to the Research Institute of Horticulture, Skierniewice in central Poland. The experiment was planted in a randomized complete block design with three replicates (plots) each composed of 15 seedlings (the total trial included 2025 plants). Measurements and observations were recorded yearly for each seedling from 2008 to 2012. The results showed that non-additive effects are predominantly involved in the genetic variation for all evaluated traits, whereas the additive effects play a relatively minor role in the genetic variations of these traits. Large, significant SCA effects were found for shoot thorniness, fruit weight, fruit susceptibility to powdery mildew, and plant susceptibility to leaf spot and nonsignificant variation in SCA effects was observed for the other traits (plant vigor, plant habit, fruit yield, fruit color, and plant susceptibility to powdery mildew). Significant GCA effects were limited to a few of the parents and some traits. The cultivars Worchesterberry and White Smith had good GCA effects and therefore are good parents for breeding thornless cultivars. 'Pax' and 'Martlet' are desirable genotypes for developing new cultivars with large fruit. The cultivars Martlet and Kamieniar are good parents for low fruit susceptibility to powdery mildew, and they may be efficient parents in breeding programs focused on increasing resistance/tolerance to this disease in new cultivars. Based on our results, we discuss strategies for gooseberry breeding programs and provide better insight into the genetic control of the traits studied.

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Genetic Variance Components in Cultivated Strawberry

Cited by 10 publications

References 2 publications

Assessment of Combining Ability Effects for several Yield and Quality Traits in a Complete Diallel Cross of Strawberry (Fragaria × ananassa Duch.)

Assessment of Combining Ability Effects for several Yield and Quality Traits in a Complete Diallel Cross of Strawberry (Fragaria × ananassa Duch.)

Chromosome Associations at Diakinesis in the Cultivated Strawberry

Combining Ability Analysis for Selected Plant Traits in Gooseberry

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