Understanding the Maize Genome Structure and Evolution
Author Information
Author(s): Wei Fusheng, Coe Ed, Nelson William, Bharti Arvind K, Engler Fred, Butler Ed, Kim HyeRan, Goicoechea Jose Luis, Chen Mingsheng, Lee Seunghee, Fuks Galina, Sanchez-Villeda Hector, Schroeder Steven, Fang Zhiwei, McMullen Michael, Davis Georgia, Bowers John E, Paterson Andrew H, Schaeffer Mary, Gardiner Jack, Cone Karen, Messing Joachim, Soderlund Carol, Wing Rod A
Primary Institution: University of Arizona
Hypothesis
How does the physical and genetic structure of the maize genome reflect its complex evolutionary history?
Conclusion
The study provides a comprehensive physical map of the maize genome, revealing its complex evolutionary history and structural variations.
Supporting Evidence
- The physical map covers 93.5% of the maize genome.
- 25,908 genic markers were integrated into the physical map.
- Maize has experienced two rounds of genome duplications.
- Comparative genomics showed that the euchromatic regions between rice and maize are very conserved.
- Evidence of ancient genome duplication predates the divergence of maize and rice.
Takeaway
Scientists created a detailed map of the maize genome to understand how it evolved and changed over time, showing that maize has a complicated history with many changes in its DNA.
Methodology
The study involved constructing a sequence-ready fingerprinted contig-based physical map covering 93.5% of the maize genome using various fingerprinting methods.
Limitations
Some regions of the genome remain unanchored, and discrepancies may arise from misassembly.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website