Sure enough, the pea version of sgr was always found in the same tiny part of the chromosome as the old monk's
seed color gene.
Not exact matches
To find out if the equivalent pea sgr was Mendel's
gene, they picked out the location of its sequence from pea plants that varied in their
seed color.
But researchers had never managed to sequence Mendel's
gene for
seed color, and the pea genome is too huge to go fishing for it, says co-author Norman Weeden, a pea researcher at Montana State University.
When farmers stumbled upon a juicy orange or a brightly
colored tomato, they preserved those desirable
genes by planting
seeds from that plant.