Host resistance - Nomenclature of resistance genes
7 important questions on Host resistance - Nomenclature of resistance genes
How is monogenic resistance typically referenced in plants?
- It refers to the gene attacker's scientific or English name.
What is observed about the nomenclature of resistance genes in tomato against Cladosporium fulvum?
- Resistance genes are named after the locus on which they are located (e.g., Cf-1).
How are genes named in flax that confer resistance to rust?
- The naming system resolves confusion by naming each code after the enemy species.
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What is the disadvantage of using a letter or number system in gene nomenclature?
- The name doesn't provide a clue to the gene or locus's function.
How are alleles for resistance genes indicated?
- They are assigned in the chronological order of discovery.
What is the coding system for the R genes in potato against Phytophthora infestans?
- The genetics of this heterozygous and tetraploid crop is complex.
How does the book introduce a fictional naming system for resistance genes?
- Example: R1a and R1b are on the same locus, indicating susceptibility allele r1.
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