Screening Highbush Blueberry Cultivars for Resistance to the Aphid Illinoia pepperi1

Hancock, J. F.; Schulte, N. L.; Siefker, J. H.; Pritts, Marvin P.; Roueche, Janet M.

doi:10.21273/hortsci.17.3.362

Cited by 18 publications

(1 citation statement)

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“…For the purpose of data analysis, one sample unit consists of all plants of a given variety sampled on a given day at one field site; each sample unit thus consists of 1–5 plants (10–50 growing tips). Highbush blueberry varieties vary in their resistance to aphids (Hancock et al 1982; Raworth and Schade 2006). By pooling data within a given variety, we aimed to reduce variance within the data set caused by variety-specific effects on aphid fecundity and mortality.…”

Section: Introductionmentioning

confidence: 99%

A binomial sampling method for estimating the density of blueberry aphid, Ericaphis fimbriata (Hemiptera: Aphididae), in commercial highbush blueberry

Uriel,

Abram,

Thiessen

et al. 2023

Can Entomol

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An accurate and efficient sampling method is an important tool for insect pest management because it allows for consistent measurements across many samples. There are currently no proposed standardised sampling plans or spray thresholds for the aphid Ericaphis fimbriata Richards (Hemiptera: Aphididae) on highbush blueberry (Vaccinium corymbosum Linnaeus) in British Columbia, Canada, despite it being the primary vector for blueberry scorch virus (BlScV). A standard sampling plan for this pest would allow for rapid and consistent measurements of aphid abundance in commercial fields and would allow for more detailed study of the relationship between aphid abundance, damage, and the spread of BlScV. Binomial sampling plans use the presence:absence of a pest within a sample unit to estimate the proportion of infested sample units. Pest density (proportion of measured samples with individuals present) is linked to abundance (number of individuals), and the relationship between these two measures can be modelled mathematically. In the present study, we collected data on aphid density and aphid abundance in six varieties of highbush blueberry grown in the Fraser Valley, British Columbia. These data were used to construct a distribution-free binomial model that, when given a measure of aphid density, can predict aphid abundance within a given sample.

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Section: Introductionmentioning

confidence: 99%

A binomial sampling method for estimating the density of blueberry aphid, Ericaphis fimbriata (Hemiptera: Aphididae), in commercial highbush blueberry

Uriel,

Abram,

Thiessen

et al. 2023

Can Entomol

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Blueberries and Cranberries

Hancock

Lyrene²,

Finn³

et al.

Temperate Fruit Crop Breeding

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Genetic relatedness among rabbiteye blueberry (Vaccinium ashei) cultivars determined by DNA amplification using single primers of arbitrary sequence

Aruna

Ozias‐Akins²,

Austin³

et al. 1993

Genome

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Most improved cultivars of commercially important hexaploid rabbiteye blueberry were developed from only four native selections collected from the wild; thus, many cultivars are closely related by lineage. The consanguinity among major cultivars is a potential problem, as the rabbiteye blueberries are highly self-incompatible natural outcrossers with potential inbreeding depression. We investigated the extent of genetic relatedness among 15 improved cultivars and four wild selections by the technique of random amplified polymorphic DNA, also referred to as arbitrarily primed polymerase chain reaction. Single decanucleotides of arbitrary sequence revealed polymorphism among cultivars and wild selections. Genetic distances were estimated based on the amount of band sharing. Cluster analysis of genetic distance estimates tended to group siblings with each other and with one or both parents. The average genetic distance between improved cultivars decreased relative to the four wild parental selections, which might indicate progression towards inbreeding. The significance of increased genetic relatedness among the improved cultivars of rabbiteye blueberry and the application of molecular methods in breeding and commercial cultivation is discussed.

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Screening Highbush Blueberry Cultivars for Resistance to the Aphid Illinoia pepperi1

Cited by 18 publications

References 0 publications

A binomial sampling method for estimating the density of blueberry aphid, Ericaphis fimbriata (Hemiptera: Aphididae), in commercial highbush blueberry

A binomial sampling method for estimating the density of blueberry aphid, Ericaphis fimbriata (Hemiptera: Aphididae), in commercial highbush blueberry

Blueberries and Cranberries

Genetic relatedness among rabbiteye blueberry (Vaccinium ashei) cultivars determined by DNA amplification using single primers of arbitrary sequence

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