title: [Characterization and potential utilization of maize populations in America region].
abstract: Introgression of exotic maize (Zea mays L.) germplasm is an effective approach to broadening the genetic base of Chinese germplasm. America is the center of maize origin and germplasm diversity. By analyzing general combining ability effects and heterosis responses among maize populations from the U.S., International Maize and Wheat Improvement Center (CIMMYT), and Brazil studied by different authors, 24 elite maize populations from America region, including eight U.S. populations, eight CIMMYT populations, and eight Brazilian populations, were identified as having high potential in China. Based on adaptation improvement, we suggest to introgress BSSS(R)C10, BS10(FR)C14, BS13(S)C9, BSK(HI)C8 Syn 3, BR106, Pop44(C8), and Pop45(C3) into Chinese heterotic group A, and introgress BS11(FR)C14, BS16(S)C3 Syn 2, BS29(R)C3, BSCB1(R)C14, BR105, and Pop42(C4) into Chinese heterotic group B by forming semi-exotic populations or pools, respectively, in order to broaden the Chinese germplasm base.
authors.affiliation: National Engineering Laboratory of Crop Molecular Breeding, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China. caas06a231@yahoo.com.cn
authors.forename: Hong-Jun
authors.initials: HJ
authors.lastname: Yong
authors.forename: Jian-Jun
authors.initials: JJ
authors.lastname: Wang
authors.forename: De-Gui
authors.initials: DG
authors.lastname: Zhang
authors.forename: Xiao-Cong
authors.initials: XC
authors.lastname: Zhang
authors.forename: Ming-Shun
authors.initials: MS
authors.lastname: Li
authors.forename: Li
authors.initials: L
authors.lastname: Bai
authors.forename: Shi-Huang
authors.initials: SH
authors.lastname: Zhang
authors.forename: Xin-Hai
authors.initials: XH
authors.lastname: Li
mesh_terms: D001938:Brazil; D002681:China; D014481:United States; D003313:Zea mays / Q000235:genetics*