With reference to agriculture in India, how can the technique of 'genome sequencing', often seen in the news, be used in the immediate future ? 1. Genome sequencing can be used to identify genetic markers for disease resistance and drought tolerance in various crop plants. 2. This technique helps in reducing the time required to develop new varieties of crop plants. 3. It can be used to decipher the host- pathogen relationships in crops. Select the correct answer using the code given below :

Genome sequencing provides the complete genetic blueprint of an organism. 1. By sequencing genomes of different crop varieties and wild relatives, researchers can identify genes or genetic markers associated with desirable traits like resistance to diseases or tolerance to drought. This information is crucial for marker-assisted selection and breeding programs. Thus, statement 1 is correct. 2. Knowing the genetic basis of traits allows breeders to make more informed selections early in the breeding process, reducing the need for extensive field trials for each generation. This targeted approach, enabled by genomic data, can significantly shorten the time required to develop new, improved crop varieties compared to traditional breeding methods. Thus, statement 2 is correct. 3. Genome sequencing can be applied to both the host plant and the pathogens that infect it (e.g., fungi, bacteria, viruses, insects). By sequencing the genomes of pathogens, scientists can understand their virulence factors, mechanisms of infection, and evolution. Sequencing the host genome reveals genes involved in defense responses. Comparing and analyzing these genomes helps decipher the complex interactions and relationships between the host plant and its pathogens, which is vital for developing resistant varieties or disease management strategies. Thus, statement 3 is correct.