books.google.com - This multi-authored book provides a comprehensive review of citrus breeding, including relevant genetics, molecular biology and biotechnology. Topics discussed include origin and Taxonomy, hybridization and see procedures, triploid breeding, mutation breeding, selection for fruit traits, tree characters...http://books.google.com/books/about/Citrus_Genetics_Breeding_and_Biotechnolo.html?id=pKlNrSR_8IEC&utm_source=gb-gplus-shareCitrus Genetics, Breeding and Biotechnology