The Genetic Architecture of Maize Flowering Time

Author:

Buckler Edward S.123,Holland James B.14,Bradbury Peter J.12,Acharya Charlotte B.2,Brown Patrick J.2,Browne Chris15,Ersoz Elhan2,Flint-Garcia Sherry15,Garcia Arturo15,Glaubitz Jeffrey C.6,Goodman Major M.4,Harjes Carlos7,Guill Kate15,Kroon Dallas E.2,Larsson Sara3,Lepak Nicholas K.13,Li Huihui289,Mitchell Sharon E.2,Pressoir Gael2,Peiffer Jason A.3,Rosas Marco Oropeza4,Rocheford Torbert R.1011,Romay M. Cinta212,Romero Susan2,Salvo Stella14,Villeda Hector Sanchez513,Sofia da Silva H.10,Sun Qi14,Tian Feng2,Upadyayula Narasimham10,Ware Doreen115,Yates Heather2,Yu Jianming16,Zhang Zhiwu2,Kresovich Stephen2,McMullen Michael D.15

Affiliation:

1. U.S. Department of Agriculture (USDA)–Agricultural Research Service (USDA-ARS).

2. Institute for Genomic Diversity, Cornell University, Ithaca, NY 14853, USA.

3. Department of Plant Breeding and Genetics, Cornell University, Ithaca, NY 14853, USA.

4. Department of Crop Science, North Carolina State University, Raleigh, NC 27695, USA.

5. Division of Plant Sciences, University of Missouri, Columbia, MO 65211, USA.

6. Laboratory of Genetics, University of Wisconsin, Madison, WI 53706, USA.

7. Monsanto Company, Leesburg, GA 31763, USA.

8. School of Mathematical Science, Beijing Normal University, Beijing 100875, China.

9. Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China.

10. Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA.

11. Department of Agronomy, Purdue University, Urbana, IL 61801, USA.

12. Mision Biologica de Galicia (CSIC), Pontevedra 36080, Spain.

13. CIMMYT, INT, Crop Research Laboratory, Carretera Mex-Veracruz, CP 56130, Mexico.

14. Computational Biology Service Unit, Cornell University, Ithaca, NY 14853, USA.

15. Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.

16. Department of Agronomy, Kansas State University, Manhattan, KS 66506, USA.

Abstract

Codifying Maize Modifications Maize, one of our most important crop species, has been the target of genetic investigation and experimentation for more than 100 years. Crossing two inbred lines tends to result in “better” offspring, in a process known as heterosis. Attempts to map the genetic loci that control traits important for farming have been made, but few have been successful (see the Perspective by Mackay ). Buckler et al. (p. 714 ) and McMullen et al. (p. 737 ) produced a genomic map of maize that relates recombination to genome structure. Even tremendous adaptations in very diverse species were produced by numerous, small additive steps. Differences in flowering time in maize among inbred lines were not caused by a few genes with large effects, but by the cumulative effects of numerous quantitative trait loci—each of which has only a small impact on the trait.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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