`Tulameen' Red Raspberry

Daubeny, Hugh A.; Anderson, Angela K.

doi:10.21273/hortsci.26.10.1336

Cited by 26 publications

(25 citation statements)

References 3 publications

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“…'Algonquin', first released as germplasm homozygous for Ag 1 (Daubeny and Sjulin, 1984), was among the group found to be readily colonized by biotypes C, D, E, and F (Table 1). Based on this result, and the observations of 'Saanich' and 'Cowichan' being resistant to colonization by biotype C aphids, we believe that biotype C represents aphids capable of overcoming Ag 1 , as was first described by Daubeny and Anderson (1991), and that biotypes D, E, and F represent aphids capable of overcoming Ag 1 in addition to one or more other sources of resistance.…”

Section: Resultssupporting

confidence: 62%

Biotypic Diversity and Resistance to the Raspberry Aphid Amphorophora agathonica in Pacific Northwestern North America

Dossett¹,

Kempler²

2012

J. Amer. Soc. Hort. Sci.

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Resistance to colonization by the raspberry aphid (Amphorophora agathonica Hottes) has been an important objective in North American red raspberry (Rubus idaeus L.) breeding programs since the 1930s because of its effectiveness in controlling the spread of aphid-transmitted viruses in red raspberry. The most widely used source of resistance in North America has been the gene Ag1 from ‘Lloyd George’. The widespread use of Ag1 to control aphids led to the appearance of a resistance-breaking biotype in British Columbia, Canada, in 1990. Our objective was to identify biotypes of A. agathonica present in the commercial red raspberry production region of southwestern British Columbia and northwestern Washington and determine what sources of resistance may still be effective against this pest. We collected 12 aphid isolates and screened them against 15 raspberry cultivars and four selections. Although it has been widely believed that only two biotypes (regular and Ag1-breaking) of A. agathonica were present in the region, we identified six distinct biotypes and characterized them by their ability or inability to colonize a differential set of raspberry cultivars. This has confirmed the loss of previously recognized and unrecognized sources of resistance in some cultivars. The data also support the presence of a seventh biotype that has not yet been observed. In addition, we confirmed resistance from three sources of wild North American red raspberries that hold up to each of these biotypes. Our results will serve as a guide for future efforts to characterize the prevalence of different aphid biotypes in the region and the identification of new sources of resistance for breeding.

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Section: Resultssupporting

confidence: 62%

Biotypic Diversity and Resistance to the Raspberry Aphid Amphorophora agathonica in Pacific Northwestern North America

Dossett¹,

Kempler²

2012

J. Amer. Soc. Hort. Sci.

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“…In the present work, the most sold red fruiting raspberry “Tulameen” was included for comparative study with the important pale yellow fruiting variety “Anne” to elucidate the phenomenon involved in pigmentation. Red raspberry “Tulameen” was selected from a cross “Nootka” × “Glen Prosen”, both bearing red fruits (Daubeny and Anderson, 1991). Yellow variety “Anne” has been selected from a controlled cross of two red varieties, “Amity” × “Glen Gerry” (Swartz et al, 1998); however, the authors did not provide any details on the inheritance of yellow pigmented fruits.…”

Section: Discussionmentioning

confidence: 99%

Nonsense Mutation Inside Anthocyanidin Synthase Gene Controls Pigmentation in Yellow Raspberry (Rubus idaeus L.)

et al. 2016

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Yellow raspberry fruits have reduced anthocyanin contents and offer unique possibility to study the genetics of pigment biosynthesis in this important soft fruit. Anthocyanidin synthase (Ans) catalyzes the conversion of leucoanthocyanidin to anthocyanidin, a key committed step in biosynthesis of anthocyanins. Molecular analysis of the Ans gene enabled to identify an inactive ans allele in a yellow fruit raspberry (“Anne”). A 5 bp insertion in the coding region was identified and designated as ans+5. The insertion creates a premature stop codon resulting in a truncated protein of 264 amino acids, compared to 414 amino acids wild-type ANS protein. This mutation leads to loss of function of the encoded protein that might also result in transcriptional downregulation of Ans gene as a secondary effect, i.e., nonsense-mediated mRNA decay. Further, this mutation results in loss of visible and detectable anthocyanin pigments. Functional characterization of raspberry Ans/ans alleles via complementation experiments in the Arabidopsis thaliana ldox mutant supports the inactivity of encoded protein through ans+5 and explains the proposed block in the anthocyanin biosynthetic pathway in raspberry. Taken together, our data shows that the mutation inside Ans gene in raspberry is responsible for yellow fruit phenotypes.

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“…The raspberry cultivars selected for this study were the resistant ÔTulameenÕ and susceptible ÔVintage,Õ a new release from the USDA Horticultural Crops Research Unit and Oregon State University cooperative breeding program. Tulameen was selected for aphid resistance conferred by gene Ag 1 (Daubeny andAnderson 1991, Daubeny andKempler 2003). Vintage and Tulameen plants were obtained as hardened-off tissue culture plugs from Sakuma Brothers (Burlington, WA).…”

Section: Methodsmentioning

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.

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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.

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`Tulameen' Red Raspberry

Cited by 26 publications

References 3 publications

Biotypic Diversity and Resistance to the Raspberry Aphid Amphorophora agathonica in Pacific Northwestern North America

Biotypic Diversity and Resistance to the Raspberry Aphid Amphorophora agathonica in Pacific Northwestern North America

Nonsense Mutation Inside Anthocyanidin Synthase Gene Controls Pigmentation in Yellow Raspberry (Rubus idaeus L.)

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

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