Identification of Resistance to the Large Raspberry Aphid in Black Raspberry

Dossett, Michael; Finn, Chad E.

doi:10.21273/jashs.135.5.438

Cited by 31 publications

(12 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Further research into these interactions would help explain why A. agathonica salivation apparently was unsuccessful in overcoming phloem sieve element defenses ), preventing initiation of phloem sap ingestion. Future research also should focus on the mechanism of resistance in raspberry containing resistance genes Ag 2 and Ag 3 , as well as resistance genes recently reported in black raspberry (Daubeny andStary 1982, Dossett andFinn 2010). Thorough knowledge of the mechanism of each gene will facilitate breeding of cultivars that pyramid multiple defensive mechanisms to slow the advance of new A. agathonica biotypes and maintain the effectiveness of resistant red raspberries for virus control.…”

Section: Discussionmentioning

confidence: 99%

Location of the Mechanism of Resistance to <I>Amphorophora agathonica</I> (Hemiptera: Aphididae) in Red Raspberry

Lightle¹,

Dossett²,

Backus³

et al. 2012

jnl. econ. entom.

View full text Add to dashboard Cite

The aphid Amphorophora agathonica Hottes (Hemiptera: Aphididae) is an important virus vector in red (Rubus idaeus L.) and black (Rubus occidentalis L.) raspberries in North America. Raspberry resistance to A. agathonica in the form of a single dominant gene named Ag1 has been relied upon to help control aphid-transmitted plant viruses; however, the mechanism of resistance to the insect is poorly understood. Aphid feeding was monitored using an electrical penetration graph on the resistant red raspberry 'Tulameen' and compared with a susceptible control, 'Vintage'. There were no differences in pathway feeding behaviors of aphids as they moved toward the phloem. Once in the phloem, however, aphids feeding on resistant plants spent significantly more time salivating than on susceptible plants, and ingested significantly less phloem sap. This suggests that a mechanism for resistance to A. agathonica is located in the phloem. Reduced ingestion of phloem may result in inefficient acquisition of viruses and is a likely explanation for the lack of aphid-transmitted viruses in plantings of resistant cultivars.

show abstract

Section: Discussionmentioning

confidence: 99%

Location of the Mechanism of Resistance to <I>Amphorophora agathonica</I> (Hemiptera: Aphididae) in Red Raspberry

Lightle¹,

Dossett²,

Backus³

et al. 2012

jnl. econ. entom.

View full text Add to dashboard Cite

show abstract

“…In 2014, 1650 acres were harvested that earned growers a utilized production value of over US$16.8 million (Anonymous 2015 ). One hindrance to expanding production is susceptibility of the predominant cultivar Munger to the Raspberry mosaic virus complex vectored by the North American large raspberry aphid, Amphorophora agathonica Hottes (Dossett and Finn 2010 ). Infection causes rapid decline of plantings, often with field replacement necessary after only three or four growing seasons (Halgren et al 2007 ).…”

Section: Introductionmentioning

confidence: 99%

“…Genetic diversity in wild black raspberry germplasm as detected by molecular tools (Dossett et al 2012b ; Nybom and Schaal 1990 ) and through breeding experiments (Dossett et al 2008 ) is currently untapped. To address this, Dossett and Finn ( 2010 ) canvassed the native range of R. occidentalis collecting seed, which was subsequently germinated and evaluated for multiple traits including aphid resistance. From this study, three of 132 wild populations were determined to segregate for resistance to A. agathonica .…”

Section: Introductionmentioning

confidence: 99%

A genetic linkage map of black raspberry (Rubus occidentalis) and the mapping of Ag 4 conferring resistance to the aphid Amphorophora agathonica

et al. 2015

Self Cite

View full text Add to dashboard Cite

Key messageWe have constructed a densely populated, saturated genetic linkage map of black raspberry and successfully placed a locus for aphid resistance.AbstractBlack raspberry (Rubus occidentalis L.) is a high-value crop in the Pacific Northwest of North America with an international marketplace. Few genetic resources are readily available and little improvement has been achieved through breeding efforts to address production challenges involved in growing this crop. Contributing to its lack of improvement is low genetic diversity in elite cultivars and an untapped reservoir of genetic diversity from wild germplasm. In the Pacific Northwest, where most production is centered, the current standard commercial cultivar is highly susceptible to the aphid Amphorophora agathonica Hottes, which is a vector for the Raspberry mosaic virus complex. Infection with the virus complex leads to a rapid decline in plant health resulting in field replacement after only 3–4 growing seasons. Sources of aphid resistance have been identified in wild germplasm and are used to develop mapping populations to study the inheritance of these valuable traits. We have constructed a genetic linkage map using single-nucleotide polymorphism and transferable (primarily simple sequence repeat) markers for F1 population ORUS 4305 consisting of 115 progeny that segregate for aphid resistance. Our linkage map of seven linkage groups representing the seven haploid chromosomes of black raspberry consists of 274 markers on the maternal map and 292 markers on the paternal map including a morphological locus for aphid resistance. This is the first linkage map of black raspberry and will aid in developing markers for marker-assisted breeding, comparative mapping with other Rubus species, and enhancing the black raspberry genome assembly.Electronic supplementary materialThe online version of this article (doi:10.1007/s00122-015-2541-x) contains supplementary material, which is available to authorized users.

show abstract

“…Subsequent tests with the closely related nonvectoring aphid A. rubitoxica Knowlton showed that the population from Maine was resistant to this species while the Ontario population was not. The data suggest that aphid resistance in these two populations is controlled by different genes and each is inherited as a dominant trait (Dossett and Finn 2010 ).…”

Section: Resistance To Pestsmentioning

confidence: 94%

Raspberry

Kempler

Hall²,

Finn

2011

Fruit Breeding

Self Cite

View full text Add to dashboard Cite

The red raspberry, Rubus idaeus L., is a valuable crop that has recently increased in production, generating a large interest in commercial ventures and in research. Traditionally, most of the crop has been sold to processors for freezing, jam production, canning, juice and fl avorings for ice cream, yogurt, and other products, but in recent years fresh market production has increased and become a very important sector of this industry. There has been an increased interest in black, purple, and Arctic raspberries because of their high nutraceutical value. R. idaeus, a diploid (2 n = 14), is included in the Idaeobatus and is the most important commercial species in this subgenus. The fl owers are hermaphroditic; however, in some cases, they are unisexual, especially among wild species. Domestication of raspberries is comparably recent as it occurred less than 500 years ago. Red raspberries are widely distributed in all temperate regions of Europe, Asia, and North America with the greatest diversity in China. Enriching the cultivated gene pool by incorporating the unique genetics from wild germplasm to meet the challenges that lie ahead is desired. Breeding goals are the improvement of fruit quality which includes selection for better preharvest hanging ability and postharvest shelf life and processed quality. Resistance to heat and cold and resistance to pests and disease are also important, as well as large fruit size, good presentation, and ease of harvest. Fruit color of the newer cultivars varies from very dark red to a light orange-red and there has become a tradition of cultivar selection (eds.), Fruit Breeding, Handbook of Plant Breeding 8, DOI 10.1007/978-1-4419-0763-9_8, © Springer Science+Business Media, LLC 2012 264 C. Kempler et al.specifi cally for processing or for fresh market. There are now approximately 50 active raspberry breeding programs in 26 countries, mostly in Europe and North America. Use of molecular markers for genetic studies and mapping is referenced; however, in this crop, it is at an early stage with only a few genes mapped.

show abstract

Identification of Resistance to the Large Raspberry Aphid in Black Raspberry

Cited by 31 publications

References 20 publications

Location of the Mechanism of Resistance to <I>Amphorophora agathonica</I> (Hemiptera: Aphididae) in Red Raspberry

Location of the Mechanism of Resistance to <I>Amphorophora agathonica</I> (Hemiptera: Aphididae) in Red Raspberry

A genetic linkage map of black raspberry (Rubus occidentalis) and the mapping of Ag 4 conferring resistance to the aphid Amphorophora agathonica

Raspberry

Contact Info

Product

Resources

About