This was a daunting task,
as the barley genome is almost twice the size of the human genome and 80 percent of it is composed of highly repetitive sequences, which can not be assigned accurately to specific positions in the genome without considerable extra effort.
Not exact matches
Gale and his colleagues were the first to develop restriction fragment length polymorphisms for analysing the
genomes of cereal crops, and have built on that expertise to construct detailed genetic maps of
barley, rye and pearl millet,
as well
as wheat.
Having now surmounted the corn challenge gives researchers confidence to tackle even more complex crop
genomes, such
as wheat and
barley — other potential weapons in fighting global hunger.
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As for
barley, the dehydrin genes seem to be very plastic, some of them changing at a high frequency over generations, and we intend to look into this plasticity in more detail now that we have the
genome knowledge that we lacked before.
Advancements in such
genome sequencing have enabled the scientists to make comparisons of gene similarity between closely related species — wheat and
barley, for example — and more distantly related species such
as wheat and maize.
Genome sequencing has helped scientists understand pets such
as dogs and cats; agricultural animals like cows and pigs; crop plants such
as rice, corn,
barley; and a host of other living things.