TY  - PRO
AU  - Li,M.S.
AU  - Li,X.H.
AU  - Tian,Q.Z.
AU  - Xia,X.C.
AU  - Zhang,S.H.
ED  - Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico)
ED  - Arnel R. Hallauer International Symposium on Plant Breeding
TI  - Analysis of genetic diversity of CIMMYT and chinese maize population
U1  - 631.53 
PY  - 2003///
CY  - Mexico, DF (Mexico)
PB  - CIMMYT
KW  - Crossbreeding
KW  - Germplasm
KW  - AGROVOC
KW  - Heterosis
KW  - Inbred lines
KW  - Maize
KW  - Hybrids
KW  - Plant breeding
N2  - Characterization of maize germplasm is essential to a hybrid maize breeding program. Moll et al. (1962, 1965) observed a linear correlation between mid-parent heterosis of F1 generation progeny and parental genetic distance within a certain distance level. Analysis of genetic diversity is of great benefit to maize breeders in assigning heterotic groups and patterns, and consequently in the selection of inbred lines and making crosses. During the last decade, molecular markers have successfu11y been used to detect the genetic diversity in maize (Smith and Smith 1991, and others). In particular, Simple Sequence Repeats (SSR) loci have many advantages in genetic analyses due to: (1) known map location and a high level of polymorphism (Smith et al.1997; Pejic et al.1998); (2) availability in public databases such as MaizeDB (http:/ /nucleus.agron.missouri.edu/cgi-bin/ssr-bin.pl); (3) efficiency in data collection and analysis by using multiplexes and automated systems (Mitchell et al. 1997; Warburton et al. 2002); and (4) accuracy and repeatability (Pejic et al. 1998)
ER  -