Genetic analysis of heat tolerance at anthesis on rice

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Data analysis will also be a large focus in the next reporting cycle since our field season did not end until July Results of association mapping were in agreement with our biparental results, where we published the first QTL for waterlogging tolerance under field conditions in wheat Ballesteros et al.

Although some of these newly identified metabolites are promising as biomarkers for improving drought stress tolerance in wheat, their correlation to drought tolerance in wheat and other cereal crops requires further investigation.

Weak correlation between flag leaf photosynthesis with yield but significant correlation with biomass. Unique bands generated by OPB primer with tolerant Orabi2 and moderate genotypes SK and ,SK presented in Figure 5 can be considered as potential markers to identify drought tolerant lines or may even be more useful when converted into a simple-sequence PCR based marker that can be used for large-scale drought tolerance screening of cultivars.

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As expected, these metabolites were involved in number of different pathways Table 3. Genetic diversity analysis of some barley genotypes for salt tolerance using ssr markers.

A publication has been submitted from this work. An interaction between genotype and the waterlogging treatment GxT was observed for days to heading, plant height, kernel weight spike-1, kernels spike-1 and kernel weight with significant GxT detected for total GY during the first season only.

Dr Nicholas Collins

A New Method for Discovery. However, further evaluation is necessary. Discussion Drought stress can severely affect physiological and morphological mechanisms that could potentially affect performance, functionality and ultimately survival of plants.

Most of the experiments conducted during this reporting period will be repeated in year 2. Plants from the Mediterranean, which experiences seasonal rainfall along with terminal drought, have large and narrow root systems to extract water from the top layers of soil early in the season [ ].

Mesophyll conductance gm and stomatal conductance gs to CO2 often decrease under drought stress [ ]. A similar locus for each genotype class was IR64 type Adaptive QTLs are sensitive to any changes in environmental conditions; the QTL gene is regulated by an environmental signal.

Moreover, by using this approach, the reaction of a plant to a given environment can be predicted based on regulated gene networks [ 94 ].

Genetic improvement is the most effective and sustainable method to reduce the detrimental effect of water stress. Proteomic analysis of rice anthers under salt stress. Among different metabolite groups, accumulation of a number of amino acids significantly increased in the drought treated leaves compared to control, including tryptophan 7.

The atmosphere inside the green house was circulated by electric fans which were Genetic Analysis of Cold Tolerance at Seedling Stage and Heat Tolerance at Anthesis in Rice (Oryza sativa L.) ©CAAS.

Genetic analysis of heat tolerance will help breeders produce rice (Oryza sativa L.) varieties adapted to future climates.

Expression and Promoter Analysis of Six Heat Stress-Inducible Genes in Rice

An F6 population of recombinant inbred lines of Bala (tolerant) × Azucena (susceptible) was screened for heat tolerance at anthesis by measuring spikelet fertility at 30°C (control) and 38°C (high temperature) in experiments conducted in the Philippines and the.

Dr Nicholas Collins My current research focus is the genetics and physiology of heat tolerance in wheat. I also have expertise in cereal tolerance to other abiotic stresses and resistance to. May 20,  · In the current research, the CSSLs were used for genetic analysis of heat tolerance at anthesis in rice for the first time.

Compared to other permanent mapping populations, such as RILs and DH, using CSSLs to map QTLs can eliminate the interference of genetic background, thus QTLs with minor effects could be detected (Ebitani.

et al. ).

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Though Nagina 22 (N22) is deep rooted, drought and heat tolerant aus rice variety (Jagadish et al. b), there are very few genetic studies using N22 mutants. Characterization of Ethyl Methane Sulphonate (EMS) induced mutants of N22 for water stress and heat tolerance was reported by Panigrahy et al.

(). In the current research, the CSSLs were used for genetic analysis of heat tolerance at anthesis in rice for the first time.

There was a problem providing the content you requested

Compared to other permanent mapping populations, such as RILs and DH, using CSSLs to map QTLs can eliminate the interference of genetic background, thus QTLs with minor effects could be detected (Ebitani.

et al. ).

Genetic analysis of heat tolerance at anthesis on rice
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