Details
| Original language | English |
|---|---|
| Pages (from-to) | 66-80 |
| Number of pages | 15 |
| Journal | Weed research |
| Volume | 49 |
| Issue number | SUPPL. 1 |
| Publication status | Published - 1 Nov 2009 |
| Externally published | Yes |
Abstract
Orobanche crenata is a root parasitic weed that is a major constraint for grain and forage legume cultivation in Mediterranean and West Asia. Only moderate to low levels of incomplete resistance of complex inheritance has been identified so far in legume crops, which has hampered genetic and genomic analysis. In the present study, we provide a gene expression profile of roots of the model legume Medicago truncatula in response to infection by O. crenata. M. truncatula accessions SA27774 (complete resistance acting at early penetration stages) and SA4087 (incomplete late acting resistance mediated by necrosis of parasite tubercle) were inoculated with O. crenata seeds in a semi-sterile dish system. Roots were harvested at 15 (first contacts of the parasitism structures with the host roots), 21 (initial stage of parasite tubercle formation on SA4087) and 35 (prior necrosis of well-developed parasite tubercle of on SA4087) days post-inoculation. Array hybridisations revealed several hundred genes up-regulated in response to O. crenata infection. Gene expression patterns suggest that resistance mechanisms activated in both genotypes are temporally and spatially different and resemble those associated with plant resistance to microbial pathogens. Regulated genes identified here represent a comprehensive resource that can be used as a support to breeding strategies for resistance.
Keywords
- Barrel medick, Broomrape, Defence response, Gene regulation, Legume, Microarray, Parasitic plant, Protein
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Ecology, Evolution, Behavior and Systematics
- Agricultural and Biological Sciences(all)
- Agronomy and Crop Science
- Agricultural and Biological Sciences(all)
- Plant Science
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In: Weed research, Vol. 49, No. SUPPL. 1, 01.11.2009, p. 66-80.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Gene expression profiling of Medicago truncatula roots in response to the parasitic plant Orobanche crenata
AU - Dita, M. A.
AU - Die, J. V.
AU - RomÁn, B.
AU - Krajinski, F.
AU - KÜster, H.
AU - Moreno, M. T.
AU - Cubero, J. I.
AU - Rubiales, D.
PY - 2009/11/1
Y1 - 2009/11/1
N2 - Orobanche crenata is a root parasitic weed that is a major constraint for grain and forage legume cultivation in Mediterranean and West Asia. Only moderate to low levels of incomplete resistance of complex inheritance has been identified so far in legume crops, which has hampered genetic and genomic analysis. In the present study, we provide a gene expression profile of roots of the model legume Medicago truncatula in response to infection by O. crenata. M. truncatula accessions SA27774 (complete resistance acting at early penetration stages) and SA4087 (incomplete late acting resistance mediated by necrosis of parasite tubercle) were inoculated with O. crenata seeds in a semi-sterile dish system. Roots were harvested at 15 (first contacts of the parasitism structures with the host roots), 21 (initial stage of parasite tubercle formation on SA4087) and 35 (prior necrosis of well-developed parasite tubercle of on SA4087) days post-inoculation. Array hybridisations revealed several hundred genes up-regulated in response to O. crenata infection. Gene expression patterns suggest that resistance mechanisms activated in both genotypes are temporally and spatially different and resemble those associated with plant resistance to microbial pathogens. Regulated genes identified here represent a comprehensive resource that can be used as a support to breeding strategies for resistance.
AB - Orobanche crenata is a root parasitic weed that is a major constraint for grain and forage legume cultivation in Mediterranean and West Asia. Only moderate to low levels of incomplete resistance of complex inheritance has been identified so far in legume crops, which has hampered genetic and genomic analysis. In the present study, we provide a gene expression profile of roots of the model legume Medicago truncatula in response to infection by O. crenata. M. truncatula accessions SA27774 (complete resistance acting at early penetration stages) and SA4087 (incomplete late acting resistance mediated by necrosis of parasite tubercle) were inoculated with O. crenata seeds in a semi-sterile dish system. Roots were harvested at 15 (first contacts of the parasitism structures with the host roots), 21 (initial stage of parasite tubercle formation on SA4087) and 35 (prior necrosis of well-developed parasite tubercle of on SA4087) days post-inoculation. Array hybridisations revealed several hundred genes up-regulated in response to O. crenata infection. Gene expression patterns suggest that resistance mechanisms activated in both genotypes are temporally and spatially different and resemble those associated with plant resistance to microbial pathogens. Regulated genes identified here represent a comprehensive resource that can be used as a support to breeding strategies for resistance.
KW - Barrel medick
KW - Broomrape
KW - Defence response
KW - Gene regulation
KW - Legume
KW - Microarray
KW - Parasitic plant
KW - Protein
UR - http://www.scopus.com/inward/record.url?scp=72449200239&partnerID=8YFLogxK
U2 - 10.1111/j.1365-3180.2009.00746.x
DO - 10.1111/j.1365-3180.2009.00746.x
M3 - Article
AN - SCOPUS:72449200239
VL - 49
SP - 66
EP - 80
JO - Weed research
JF - Weed research
SN - 0043-1737
IS - SUPPL. 1
ER -