Use of the salmonberry,<i>Rubus spectabilis</i>Pursh., in red raspberry breeding

Knight, V.H.

doi:10.1080/00221589.1991.11516186

Cited by 12 publications

(4 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Rubus parvifolius and R. kunzieanus have been used to develop varieties for warm climates (Jennings, 1988), R. cockbunteanus for late-season and many-flowered laterals (Knight, et al, 1989), R. spectabilis Pursh. for earliness (Knight, 1991), and R. arcticus L. for flavor (Hiirsalmi, 1989). Many species, both within subgenus idaeobatus and in other subgenera, have been reported to carry other traits, including resistance to all major fungal diseases and insect pests (Keep, 1989).…”

Section: Resultsmentioning

confidence: 99%

Genetic Diversity of Red Raspberry Varieties throughout the-World

Dale¹,

Moore²,

McNicol³

et al. 1993

jashs

View full text Add to dashboard Cite

Pedigrees of 137 red raspberry (Rubus idaeus L.) varieties released throughout the world since 1960 were used to calculate: 1) the genetic contribution of founding clones to these varieties; 2) genetic relatedness among them; and 3) their inbreeding coefficients. Fifty founding clones contributed to the pedigrees of these varieties with a mean genetic contribution ranging from <0.1% to 21%. Varieties were clustered according to the genetic contribution into groups strongly related to geographical origin. Varieties developed in the former USSR and derived from `Novost Kuzmina' formed a distinct cluster. The remaining varieties were clustered in groups based mainly on whether they were of North American or European origin. Varieties were clustered also on the basis of Wright's coefficient of relationship-a measure of genetic relatedness. Cluster groups were related to their geographical origin and the varieties within the groups could be traced to similar intermediate parents. Inbreeding coefficients ranged from 0.0 to 0.625 and were related, in part, to the numbers of generations of controlled hybridization from common ancestors. The British group, with the largest number of generations of breeding, had a low mean inbreeding coefficient, indicating that inbreeding can be minimized with attention to the mating system. Strategies are suggested for maintaining and increasing the genetic diversity in the world's red raspberry breeding populations.

show abstract

Section: Resultsmentioning

confidence: 99%

Genetic Diversity of Red Raspberry Varieties throughout the-World

Dale¹,

Moore²,

McNicol³

et al. 1993

jashs

View full text Add to dashboard Cite

show abstract

“…Sources of resistance in diverse Rubus spp. to many pests and diseases have been identified and exploited in conventional cross-breeding (Keep et al 1977;Jones et al 1984;Jennings 1988;Knight 1991;Williamson and Jennings 1992). However, germplasm bearing single-resistance genes, when planted over extensive areas, can eventually be overcome by the rapid evolution of new biotypes of pests so that new types of host resistance are required to sustain plant protection Jones et al 2002).…”

Section: Breeding Principals and Objectivesmentioning

confidence: 99%

Raspberry Breeding

Graham¹,

Jennings²

2008

Breeding Plantation Tree Crops: Temperate Species

View full text Add to dashboard Cite

“…Resistance to Phytophthora root rot (PRR) is found particularly in cultivars derived from Rubus idaeus strigosus Michx., the native North American red raspberry and less so in those derived from R. idaeus vulgatus Arrhen., the native European red raspberry (Bristow et al 1988;Daubeny and Anderson 1993;Knight 1991;Levesque and Daubeny 1999;Pattison and Weber 2005). Nestby and Heiberg (1995) found that several cultivars, including 'Asker' which is of European origin, could confer resistance to some progeny populations.…”

Section: Introductionmentioning

confidence: 99%

Inheritance of Phytophthora root rot resistance in red raspberry determined by generation means and molecular linkage analysis

2007

View full text Add to dashboard Cite

Classical and molecular methodologies were used to determine the inheritance of Phytophthora root rot (PRR) resistance in red raspberry. The varieties 'Latham' and 'Titan,' resistant and susceptible, respectively, were used to create F(1), F(2), B(1), B(2), and S(1) populations for analysis. Generational means analysis was used to calculate the components of genetic variation and estimates of narrow and broad sense heritability for the plant disease index and the incidence of petiole lesions. The plant disease index showed additive genetic variation with additional significant interactions, but the incidence of petiole lesions was non-additive. A dominant, two-gene model was shown to be the best fit for the observed segregation ratios when classification for resistance was based on a combination of all criteria measured. Molecular linkage maps were generated from the segregating B(2) population. Linkage maps of both parents were constructed from amplified fragment length polymorphism (AFLP), Random amplified polymorphic DNA (RAPD), and uncharacterized resistant gene analog polymorphism (RGAP) markers with seven linkage groups each totaling 440 and 370 cM of genetic distance, respectively. An analysis of the distributional extremes of the B(2) population identified several RAPD markers clustered on two linkage groups associated with PRR resistance. QTL analysis identified two similar genomic regions on each map that explained significant percentages of phenotypic variation observed for the disease assessment criteria. Genetic mapping supports the dominant two-gene model developed from generational means analysis. The results reconcile conflicting reports on inheritance of PRR resistance, provide a basis for further investigation of durable resistance to Phytophthora caused diseases, and indicates that recurrent selection is the appropriate approach for the development of new resistant cultivars.

show abstract

Use of the salmonberry,Rubus spectabilisPursh., in red raspberry breeding

Cited by 12 publications

References 5 publications

Genetic Diversity of Red Raspberry Varieties throughout the-World

Genetic Diversity of Red Raspberry Varieties throughout the-World

Raspberry Breeding

Inheritance of Phytophthora root rot resistance in red raspberry determined by generation means and molecular linkage analysis

Contact Info

Product

Resources

About