Bakker, E.H.

Bakker, J.

Eck, H.J., van

Goverse, A.

Hutten, R.C.B.

Rouppe van der Voort, J.N.A.M.

Wageningen Yield 

Symposium abstracts
047 Molecular markers for resistance to cyst nematodes in potato
Erin BAKKER1,∗, Jeroen ROUPPE VAN DER VOORT 1, Herman VAN ECK 2, Jaap BAKKER 1 and
Aska GOVERSE 1
1Laboratory of Nematology, Wageningen University, Binnenhaven 5, 6709 PD Wageningen, The Netherlands
2 Lab. Plant Breeding, Wageningen University, The Netherlands
∗erin.bakker@nema.dpw.wau.nl
A mapping strategy based on catalogued, chromosome-
specific AFLP markers facilitated the localisation of genes
for resistance against potato cyst nematodes. The genes
Gpa2, Grp1, Gpa3, Gpa5 and Gpa6 could relatively eas-
ily be mapped with this AFLP catalogue. Fine map-
ping showed that most of these genes are located in ge-
nomic regions harbouring also resistance genes for other
pathogens. Especially, Grp1 and Gpa5 on chromosome
V and Gpa3 on chromosome 11 seem to be located in
‘hotspots’ for resistance. Remarkably, both qualitative and
quantitative resistances map to these resistance gene clus-
ters indicating that they might be controlled by similar
molecular mechanisms. Dissecting resistance in potato
will in the near future be accelerated by the availability
of an ultra dense genetic map. Using an offspring of about
100 individuals, approximate 10 000 AFLP markers have
been placed on the map of potato. The possibilities for
marker-assisted breeding in potato will be discussed.


Molecular markers for resistance to cyst nematodes in potato

Name not available

Eck, van, H.J.

NARCIS 

Molecular markers for resistance to cyst nematodes in potato

Abstract

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