Abstract
The root-knot nematode Meloidogyne graminicola is an obligate biotrophic parasite and a major pest of rice (Oryza sativa) for which resistant varieties are not currently available. Quantitative trait loci (QTLs) for partial resistance to M. graminicola were identified using a mapping population based on two rice varieties, Bala x Azucena. Experiments were carried out to investigate the interactions between M. graminicola and these two varieties in terms of nematode establishment, reproduction and effect on rice yield. Nematode establishment was also assessed in the mapping population. Meloidogyne graminicola consistently caused more galling and had higher reproductive success in Azucena than in Bala. M. graminicola did not significantly reduce yield in Bala, but caused a yield reduction of almost half in Azucena, suggesting that the partial resistance to nematode establishment was related to nematode tolerance. A total of six significant or putative QTLs for nematode tolerance were detected. For two of the QTLs detected, Azucena was the donor of the tolerance alleles, suggesting it may be possible to breed plants with greater tolerance than Bala.
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Claims 6
Claim · model-written summary
M. graminicola caused more galling in Azucena than Bala.
- Taxon
- rice
Oryza sativat0 - Material
- Azucenae0
- Interactor
- Meloidogyne graminicolaMeloidogyne graminicolae0pathogen
- Outcome
- gallinge0
- Direction
- moree0
- Comparator
- Balae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Meloidogyne graminicola consistently caused more galling and had higher reproductive success in Azucena than in Bala”
t0“rice”
Claim · model-written summary
M. graminicola reproduced more successfully in Azucena than Bala.
- Taxon
- riceOryza sativat0
- Material
- Azucenae0
- Interactor
- Meloidogyne graminicolaMeloidogyne graminicolae0pathogen
- Outcome
- reproductive successe0
- Direction
- highere0
- Comparator
- Balae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Meloidogyne graminicola consistently caused more galling and had higher reproductive success in Azucena than in Bala”
t0“rice”
Claim · model-written summary
M. graminicola did not significantly reduce Bala yield.
- Taxon
- riceOryza sativat0
- Material
- Balae0
- Treatment
- M. graminicolae0
- Interactor
- M. graminicolaMeloidogyne graminicolae0pathogen
- Outcome
- yielde0
- Direction
- did not significantly reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“M. graminicola did not significantly reduce yield in Bala”
t0“rice”
Claim · model-written summary
M. graminicola reduced Azucena yield by almost half.
- Taxon
- riceOryza sativat0
- Material
- Azucenae0
- Treatment
- M. graminicolat1
- Interactor
- M. graminicolaMeloidogyne graminicolat1pathogen
- Outcome
- yielde0
- Direction
- reductione0
- Value
- almost halfe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“caused a yield reduction of almost half in Azucena”
t0“rice”
t1“M. graminicola did not significantly reduce yield in Bala”
Claim · model-written summary
Six significant or putative QTLs for nematode tolerance were detected.
- Taxon
- riceOryza sativat0
- Gene
- QTLse0
- Outcome
- QTLs for nematode tolerancee0
- Value
- sixe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A total of six significant or putative QTLs for nematode tolerance were detected”
t0“rice”
Claim · model-written summary
Azucena donated tolerance alleles at two QTLs.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For two of the QTLs detected, Azucena was the donor of the tolerance alleles”
t0“rice”
The same questions in other papers
Meloidogyne graminicola · yield · Oryza sativa (rice)Results agree
5 papers in the same direction as this paper
- negative
- negative
- negative
2 papers more in this group
See all 6 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.