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Agronomy—A Multidisciplinary and Open Access Journal
Agronomy 2011, 1(1), 3-17; doi:10.3390/agronomy1010003
Article

Impact of Molecular Genetic Research on Peanut Cultivar Development

1,* , 2
,
2
 and
3
1 USDA-ARS, Crop Genetics and Breeding Research Unit, 115 Coastal Way, Tifton, GA 31793, USA 2 Department of Horticulture and NESPAL, University of Georgia, 2360 Rainwater Rd, Tifton, GA 31794, USA 3 USDA-ARS, Crop Protection and Management Research Unit, 2747 Davis Rd, Tifton, GA 31793, USA
* Author to whom correspondence should be addressed.
Received: 8 December 2011 / Revised: 20 December 2011 / Accepted: 20 December 2011 / Published: 20 December 2011
(This article belongs to the Special Issue Impact of Genomics Technologies on Crop Breeding Strategies)
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Abstract

Peanut (Arachis hypogaea L.) has lagged other crops on use of molecular genetic technology for cultivar development in part due to lack of investment, but also because of low levels of molecular polymorphism among cultivated varieties. Recent advances in molecular genetic technology have allowed researchers to more precisely measure genetic polymorphism and enabled the development of low density genetic maps for A. hypogaea and the identification of molecular marker or QTL’s for several economically significant traits. Genomic research has also been used to enhance the amount of genetic diversity available for use in conventional breeding through the development of transgenic peanut, and the creation of TILLING populations and synthetic allotetraploids. Marker assisted selection (MAS) is becoming more common in peanut cultivar development programs, and several cultivar releases are anticipated in the near future. There are also plans to sequence the peanut genome in the near future which should result in the development of additional molecular tools that will greatly advance peanut cultivar development.
Keywords: genetic polymorphism; marker assisted selection; peanut; QTL; synthetic allotetraploid; TILLING; transgenic genetic polymorphism; marker assisted selection; peanut; QTL; synthetic allotetraploid; TILLING; transgenic
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Holbrook, C.C.; Ozias-Akins, P.; Chu, Y.; Guo, B. Impact of Molecular Genetic Research on Peanut Cultivar Development. Agronomy 2011, 1, 3-17.

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