There are about 300-315 thousand species of plants, of which the great majority, some 260-290 thousand, are seed plants. Green plants provide a substantial proportion of the world’s molecular oxygen and are the basis of most of Earth’s Ecologies, especially on land. Plants that produce grains, fruits and vegetables form humankind’s basic foodstuffs, and have been domesticated for millennia. Plants play many roles in culture. They are used as ornaments and, until recently and in great variety, they have served as the source of most medicines and drugs. The scientific study of plants is known as botany, a branch of biology. Plant Cytogenetics, Breeding and Evolution Plant Cytogenetics comprises a topic of broad interest and increasing importance in plant science. In keeping with the exciting advances in plant genetics and genomics, we believe that a comprehensive and up-to-date reference on Plant Cytogenetics would be of great interest and value for researchers, instructors, and students with interests in genetics, plant biology, and plant genomics.
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