DNA markers closely linked to nematode resistance genes in sugar beet (Beta vulgaris L.) mapped using chromosome additions and translocations originating from wild beets of the Procumbentes section

1992 ◽  
Vol 232 (2) ◽  
pp. 271-278 ◽  
Author(s):  
C. Jung ◽  
R. Koch ◽  
F. Fischer ◽  
A. Branded ◽  
G. Wrickel ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Beta Vulgaris ◽  
Resistance Genes ◽  
Dna Markers ◽  
Nematode Resistance

scholarly journals NBS-LRR RESISTANCE GENES POLYMORPHISM OF RUSSIAN AND FOREIGN SUGAR BEET (BETA VULGARIS L.) HYBRIDS INFERRED FROM NBS-PROFILING

2020 ◽  
Author(s):  
A.A. Трифонова ◽  
E.Р. Парадня ◽  
K.В. Борис ◽  
A.M Kудрявцев
Keyword(s):  
Sugar Beet ◽  
Beta Vulgaris ◽  
Resistance Genes ◽  
Nbs Profiling

Association of a nematode resistance bearing addition chromosome with a recurring leaf intumescence somaclonal variation in sugar beet

Genome ◽  
1991 ◽  
Vol 34 (3) ◽  
pp. 477-485
Author(s):  
M. H. Yu ◽  
L. M. Pakish ◽  
J. W. Saunders
Keyword(s):  
Sugar Beet ◽  
Somaclonal Variation ◽  
Beta Vulgaris ◽  
Chromosome Doubling ◽  
Nematode Resistance ◽  
Heterodera Schachtii ◽  
Regenerated Plants ◽  
Alternative Expression ◽  
Monosomic Addition

Intumescent leaf variants of sugar beet (Beta vulgaris L.) were obtained through callus culture of a monosomic addition that carried resistance to Heterodera schachtii Schm. The frothy pockmarked appearance of the leaf surface was due to hyperplastic growth of the mesophyll and epidermal cells. The epidermis had many malformed stomata. Veins were underdeveloped, but protrusions beneath were pronounced. Intumescence occurred in 20.3% of the regenerated plants and it was heritable to F1 and later progeny. Leaf intumescence is a new phenotype for Beta. About 73.5% of regenerants contained the donor somatic chromosome number, the remainder were doubled or mixoploids, with no chromosome losses apparent. The 38-chromosome intumescent plant represents a dual somaclonal variation, chromosome doubling and leaf intumescence. Progeny of the 19- and 38-chromosome intumescent plants intercrossed or pollinated by diploids or tetraploids had 9, 18, 19, 27, 28, 29, 36, 37, 38, or 39 chromosomes. All intumescent plants were aneuploids with the monosome addition. There were linkages for leaf intumescence (Li), resistance to H. schachtii (Hs), and hypocotyl color (Rpro) on the addition chromosome. The efficacy of Hs remained intact through the in vitro culture and succeeding crosses. The Li-bearing plants manifested depressed growth and markedly reduced seed set. Leaf intumescence was thought to be the alternative expression of galling potential of Beta procumbens Chr. Sm. germ plasm.Key words: somaclonal variation, leaf intumescence, nematode resistance, monosomic addition, Beta vulgaris L.

Genome Mapping of Soybean Cyst Nematode Resistance Genes in ‘Peking’, PI 90763, and PI 88788 Using DNA Markers

Crop Science ◽  
1997 ◽  
Vol 37 (1) ◽  
pp. 258-264 ◽  
Author(s):  
Vergel C. Concibido ◽  
Douglas A. Lange ◽  
Roxanne L. Denny ◽  
James H. Orf ◽  
Nevin D. Young
Keyword(s):  
Resistance Genes ◽  
Dna Markers ◽  
Soybean Cyst Nematode ◽  
Genome Mapping ◽  
Nematode Resistance ◽  
Cyst Nematode ◽  
Soybean Cyst Nematode Resistance ◽  
Pi 88788

Isolation and linkage analysis of expressed disease-resistance gene analogues of sugar beet (Beta vulgaris L.)

Genome ◽  
2003 ◽  
Vol 46 (1) ◽  
pp. 70-82 ◽  
Author(s):  
Sandra Hunger ◽  
Gabriele Di Gaspero ◽  
Silke Möhring ◽  
Diana Bellin ◽  
Ralf Schäfer-Pregl ◽  
...  
Keyword(s):  
Disease Resistance ◽  
Sugar Beet ◽  
Resistance Gene ◽  
Beta Vulgaris ◽  
Nematode Resistance ◽  
Kinase Domain ◽  
Disease Resistance Gene ◽  
R Genes ◽  
Degenerate Primers ◽  
Organ Specific

Sequence conservation among resistance genes (R genes) was exploited to identify 47 R gene analogues (RGAs) from sugar beet (Beta vulgaris L.). Using degenerate primers, 11 RGAs were amplified from genomic DNA and 7 from leaf or beet cDNA. Twenty-nine were selected from an EST sequencing program. Twenty-one RGAs contained structures similar to the nucleotide binding site (NBS) – leucine rich repeat (LRR) domain, a motif commonly found in several R genes. Among the remaining RGAs, 19 revealed similarity to the serine (threonine) protein kinase domain of R genes, 4 showed features related to the LRR region of the rice disease resistance gene Xa21, 1 RGA resembled the sugar beet nematode resistance gene Hs1pro-1, and 2 had homologies to other gene products associated with disease resistance. For 20 EST-derived RGAs, transcript levels were compared in leaf and root tissue revealing organ-specific transcription in 7 cases. Thirty-three RGAs were spread over all nine sugar beet chromosomes, except for a cluster of nine closely linked RGAs on chromosome 7. The analysis of linkage between RGAs and loci for rhizomania and Cercospora resistance identified alleles associated with resistance in both cases.Key words: RGA, Beta vulgaris, NBS–LRR, genetic linkage map, molecular marker.

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