Читать книгу Principles of Plant Genetics and Breeding - George Acquaah - Страница 73

Tissue culture entails growing plants or parts of plants in vitro under an aseptic environment. It has various applications in modern plant breeding. Regarding the generation of variation, the specific application of tissue culture is in rescuing embryos produced from wide crosses. Due to genetic incompatibility arising from the genetic distance between parents in wide crosses, the hybrid embryo often does not develop adequately to produce a viable seed. The technique of embryo culture enables breeders to aseptically extract the immature embryo and culture it into a full grown plant that can bear seed.