Genetic signals of origin, spread, and introgression in a large sample of maize landraces

被引:286
作者
van Heerwaarden, Joost [1 ]
Doebley, John [2 ]
Briggs, William H. [3 ]
Glaubitz, Jeffrey C. [4 ]
Goodman, Major M. [5 ]
Sanchez Gonzalez, Jose de Jesus [6 ]
Ross-Ibarra, Jeffrey
机构
[1] Univ Calif Davis, Dept Plant Sci, Davis, CA 95616 USA
[2] Univ Wisconsin, Dept Genet, Madison, WI 53706 USA
[3] Syngenta Seeds, NL-1601 BK Enkhuizen, Netherlands
[4] Cornell Univ, Inst Genom Divers, Ithaca, NY 14853 USA
[5] N Carolina State Univ, Dept Crop Sci, Raleigh, NC 27695 USA
[6] Univ Guadalajara, Ctr Univ Ciencias Biol & Agropecuarias, Zapopan 45110, Jalisco, Mexico
基金
美国国家科学基金会; 美国食品与农业研究所;
关键词
POPULATION-STRUCTURE; STARCH GRAIN; DOMESTICATION; DIVERSITY; TEOSINTE; BALSAS; DNA; DISPERSALS; EVOLUTION; INFERENCE;
D O I
10.1073/pnas.1013011108
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The last two decades have seen important advances in our knowledge of maize domestication, thanks in part to the contributions of genetic data. Genetic studies have provided firm evidence that maize was domesticated from Balsas teosinte (Zea mays subspecies parviglumis), a wild relative that is endemic to the mid-to lowland regions of southwestern Mexico. An interesting paradox remains, however: Maize cultivars that are most closely related to Balsas teosinte are found mainly in the Mexican highlands where subspecies parviglumis does not grow. Genetic data thus point to primary diffusion of domesticated maize from the highlands rather than from the region of initial domestication. Recent archeological evidence for early lowland cultivation has been consistent with the genetics of domestication, leaving the issue of the ancestral position of highland maize unresolved. We used a new SNP dataset scored in a large number of accessions of both teosinte and maize to take a second look at the geography of the earliest cultivated maize. We found that gene flow between maize and its wild relatives meaningfully impacts our inference of geographic origins. By analyzing differentiation from inferred ancestral gene frequencies, we obtained results that are fully consistent with current ecological, archeological, and genetic data concerning the geography of early maize cultivation.
引用
收藏
页码:1088 / 1092
页数:5
相关论文
共 43 条
[1]   Evolution of coalescence times, genetic diversity and structure during colonization [J].
Austerlitz, F ;
JungMuller, B ;
Godelle, B ;
Gouyon, PH .
THEORETICAL POPULATION BIOLOGY, 1997, 51 (02) :148-164
[2]   Teosinte and the origin of maize [J].
Beadle, GW .
JOURNAL OF HEREDITY, 1939, 30 (06) :245-247
[3]   Archaeological evidence of teosinte domestication from Guila Naquitz, Oaxaca [J].
Benz, BF .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2001, 98 (04) :2104-2106
[4]   Molecular insights into the evolution of crop plants [J].
Burger, Jutta C. ;
Chapman, Mark A. ;
Burke, John M. .
AMERICAN JOURNAL OF BOTANY, 2008, 95 (02) :113-122
[5]   Starch grain evidence for the preceramic dispersals of maize and root crops into tropical dry and humid forests of Panama [J].
Dickau, Ruth ;
Ranere, Anthony J. ;
Cooke, Richard G. .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2007, 104 (09) :3651-3656
[6]   ISOENZYMATIC VARIATION IN ZEA (GRAMINEAE) [J].
DOEBLEY, JF ;
GOODMAN, MM ;
STUBER, CW .
SYSTEMATIC BOTANY, 1984, 9 (02) :203-218
[7]   HIGHLAND MAIZE FROM CENTRAL MEXICO - ITS ORIGIN, CHARACTERISTICS, AND USE IN BREEDING PROGRAMS [J].
EAGLES, HA ;
LOTHROP, JE .
CROP SCIENCE, 1994, 34 (01) :11-19
[8]   Spontaneous hybridization between maize and teosinte [J].
Ellstrand, Norman C. ;
Garner, Lauren C. ;
Hegde, Subray ;
Guadagnuolo, Roberto ;
Blancas, Lesley .
JOURNAL OF HEREDITY, 2007, 98 (02) :183-187
[9]   Genetic Consequences of Range Expansions [J].
Excoffier, Laurent ;
Foll, Matthieu ;
Petit, Remy J. .
ANNUAL REVIEW OF ECOLOGY EVOLUTION AND SYSTEMATICS, 2009, 40 :481-501
[10]  
Falush D, 2003, GENETICS, V164, P1567