Molecular breeding

Programming language

Marker-assisted selection

Drought resistance

Artificial intelligence

Selection (genetic algorithm)

Drought tolerance

Biotechnology

Neuroscience

Cultivar

Biology

Gene

Trait

Computer science

Agronomy

Plant breeding

Resistance (ecology)

Adaptation (eye)

Drought stress

Genetics

Quantitative trait locus

International Journal of Molecular Sciences

Drought is the leading threat to agricultural food production, especially in the cultivation of rice, a semi-aquatic plant. Drought tolerance is a complex quantitative trait with a complicated phenotype that affects different developmental stages in plants. The level of susceptibility or tolerance of rice to several drought conditions is coordinated by the action of different drought-responsive genes in relation with other stress components which stimulate signal transduction pathways. Interdisciplinary researchers have broken the complex mechanism of plant tolerance using various methods such as genetic engineering or marker-assisted selection to develop a new cultivar with improved drought resistance. The main objectives of this review were to highlight the current method of developing a durable drought-resistant rice variety through conventional breeding and the use of biotechnological tools and to comprehensively review the available information on drought-resistant genes, QTL analysis, gene transformation and marker-assisted selection. The response, indicators, causes, and adaptation processes to the drought stress were discussed in the review. Overall, this review provides a systemic glimpse of breeding methods from conventional to the latest innovation in molecular development of drought-tolerant rice variety. This information could serve as guidance for researchers and rice breeders.

Drought Resistance in Rice from Conventional to Molecular Breeding: A Review