`Malahat' Red Raspberry

Kempler, Chaim; Daubeny, Hugh A.

doi:10.21273/hortsci.35.4.783

Cited by 12 publications

(19 citation statements)

References 9 publications

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“…Fruit of 'Chilliwack', 'Malahat', and 'Qualicum' raspberries (Daubeny 1987;Daubeny and Kempler 1995;Kempler and Daubeny 2000) were harvested from breeding plots at the Pacific Agri-Food Research Centre substation at Abbotsford, British Columbia (B.C. ), Canada.…”

Section: Methodsmentioning

confidence: 99%

The Use of a Natural Clay Adsorbent Improves Quality Retention in Three Cultivars of Raspberries Stored in Modified Atmosphere Packages1

Toivonen

Kempler

Stan

2002

Journal of Food Quality

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The &ect of a mtura2 clay adsorbent on quality retention in modified atmosphere packaged raspbem'es (Rubus idaeus L., cvs 'Chilliwack ', 'Malahat ', and 'Quulicum 7 was rested. Fruit packaged with the natural clay adsorbent was much finner, had less decay, andhad fewer dark red overripe fnu't afer 14 days than those packuged without any adsorbent. The addition of the mural clay adsorbent almost eliminated all the condensation inside the package ajier 14 &ys of storage at IC. The reaktion in &cay on the fnrit could be attributed to the reduction in condensed water in the package. However, @em on firmness retention and the slowing of ripening of the fnrit could not be attributed to any measured effect of the clay in this study. The results suggest thar a water/ volatiles ahorbent, such as the natuml cloy used in this study, could be useful in prolonging the shelf-life and improving the quality of modified atmosphere packaged red raspberries grown in a wet climate.

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Section: Methodsmentioning

confidence: 99%

The Use of a Natural Clay Adsorbent Improves Quality Retention in Three Cultivars of Raspberries Stored in Modified Atmosphere Packages1

Toivonen

Kempler

Stan

2002

Journal of Food Quality

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“…Of 21 SSRs initially identified as polymorphic in a panel of 16 wild accessions and then used to study black raspberry diversity by Dossett et al (2012), 19 (90%) were polymorphic in one or both of the parents and progeny representing the two black raspberry mapping populations evaluated here (unpublished data). Likewise, the parents of the two red raspberry mapping populations that were evaluated are from diverse backgrounds, with 'Malahat' having mixed but primarily European red raspberry ancestry (Kempler and Daubeny, 2000) while BC 90-19-34 and BC 93-16-43 are F 1 hybrids with wild North American Rubus strigosus Michx. (Dossett et al, 2013).…”

Section: Ssr Namementioning

confidence: 99%

Development and Transferability of Black and Red Raspberry Microsatellite Markers from Short-Read Sequences

Dossett

Bushakra

Gilmore

et al. 2015

J. Amer. Soc. Hort. Sci.

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The advent of next-generation, or massively parallel sequencing technologies has been a boon to the cost-effective development of molecular markers, particularly in nonmodel species. Here, we demonstrate the efficiency of microsatellite or simple sequence repeat (SSR) marker development from short-read sequences in black and red raspberry (Rubus occidentalis L. and R. idaeus L., respectively), compare transferability of markers across species, and test whether the rate of polymorphism in the recovered markers can be improved upon by how marker sequences are chosen. From 28,536,412 black raspberry reads and 27,430,159 reads in red raspberry, we identified more than 6000 SSR sequences in each species and selected 288 of these (144 from each species), for testing in black and red raspberry. A total of 166 SSR primer pairs were identified with informative polymorphism in one or both species. SSRs selected based on different percentages (90% to 97% as compared with ≥98%) of read cluster similarity did not differ in polymorphism rates from each other or from those originating from singletons. Efficiency of polymorphic SSR recovery was nearly twice as high in black raspberry from black raspberry-derived sequences as from red raspberry-derived sequences, while efficiency of polymorphic SSR recovery in red raspberry was unaffected by the source of the primer sequences. Development of SSR markers that are transferable between red and black raspberry for marker-assisted selection, evaluation of genome collinearity and to facilitate comparative studies in Rubus L. will be more efficient using SSR markers developed from black raspberry sequences.

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“…One possible reason for this may be that the majority of the fi elds in the Pacifi c Northwest are planted to nonresistant cultivars, like 'Meeker' and 'Willamette' (Kempler, personal observation). Several aphid-immune cultivars have been released from the AAFC-PARC program, including: 'Haida, ' 'Nootka,' 'Skeena,' 'Qualicum,' 'Malahat,' 'Cowichan,' 'Esquimalt,' 'Chemainus,' and'Saanich' (Daubeny 1973, 1978a, b ;Daubeny and Kempler 1995 ;Kempler and Daubeny 2000 ;Kempler et al 2005aKempler et al , b, 2006Kempler et al , 2007 . 'Algonquin,' also from the AAFC-PARC program, has been identifi ed as homozygous for gene A g 1 with apparent lack of segregation when 'Algonquin' is used as parent.…”

Section: Resistance To Pestsmentioning

confidence: 99%

“…While it generally takes many generations after the initial hybridization to achieve commercial genotypes, 'Loganberry,' 'Chehalem,' and 'Boysen' are examples of fi rst-generation hybrids with a different species, in this case R. ursinus or R. armeniacus , resulting in commercial genotypes (Clark et al 2007 ) . While there are probably numerous examples, two recent releases have novel species in their background with 'Malahat' tracing back to R. phoenicolasius and R. occidentalis and 'Malling Juno' to R. crataegifolius (Kempler and Daubeny 2000 ;Knight and Fernández Fernández 2008a ) .…”

Section: Generation Of Genetic Variationmentioning

confidence: 99%

Raspberry

Kempler

Hall²,

Finn

2011

Fruit Breeding

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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.

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`Malahat' Red Raspberry

Cited by 12 publications

References 9 publications

The Use of a Natural Clay Adsorbent Improves Quality Retention in Three Cultivars of Raspberries Stored in Modified Atmosphere Packages1

The Use of a Natural Clay Adsorbent Improves Quality Retention in Three Cultivars of Raspberries Stored in Modified Atmosphere Packages1

Development and Transferability of Black and Red Raspberry Microsatellite Markers from Short-Read Sequences

Raspberry

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