At first, significantly higher-yielding cellulose sources can come from conventional breeding, experts say.

But executives said that Monsanto would now develop new vegetable varieties using conventional breeding.

So far, scientists have tried to make apomictic crops mainly through conventional breeding.

This can be done through conventional breeding but would take over 50 years to achieve.

But that knowledge would be used to guide conventional breeding, not to create genetically altered herds.

But the company says its first such product, not expected for a few years, will be developed by conventional breeding.

The genes must then be put into commercial rice varieties either by genetic engineering or through conventional breeding.

This can be done either through conventional selective breeding, or through genetic engineering.

Once an initial group of fish was created this way, the rest could be produced through conventional breeding.

In conventional breeding, researchers simply transfer pollen from one plant variety to the reproductive cells of another.