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Plant Comparative Genetics after 10 Years

The past 10 years have seen the discovery of unexpected levels of conservation of gene content and gene orders over millions of years of evolution within grasses, crucifers, legumes, some trees, andSolanaceae crops. Within the grasses, which include the three 500-million-ton-plus-per-year crops (wheat, maize, and rice), and the crucifers, which include all the Brassica crops, colinearity looks good enough to do most map-based cloning only in the small genome model species, rice and Arabidopsis. Elsewhere, knowledge gained in a few major crops is being pooled and applied across the board. The extrapolation of information from the well-studied species to orphan crops, which include many tropical species, is providing a solid base for their improvement. Genome rearrangements are giving new insights into evolution. In fact, comparative genetics is the key that will unlock the secrets of crop plants with genomes larger than that of humans.

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Classifications


Resource Type: Journal article/Issue, Illustration
Audience Level: High school upper division 11-12, Undergraduate lower division 13-14, Undergraduate upper division 15-16, Graduate, Professional (degree program), Continuing education

Author and Copyright


Authors and Editors: M.D. Gale of John Innes Centre, K.M. Devos of John Innes Centre
Publisher: AAAS
Format: text/html
Copyright and other restrictions: Yes
Cost: No

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American Association for the Advancement of Science


     
   

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