000 02441nam a22004217a 4500
001 G78694
003 MX-TxCIM
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040 _aMX-TxCIM
072 0 _aA50
072 0 _aF30
082 0 4 _a631.53
_bBOO
100 1 _aLi, M.S.
_uBook of abstracts: Arnel R. Hallauer international symposium on plant breeding
110 0 _aCentro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico)
111 2 _aArnel R. Hallauer International Symposium on Plant Breeding
_cMexico, D.F. (Mexico)
_d17-22 Aug 2003
245 0 0 _aAnalysis of genetic diversity of CIMMYT and chinese maize population
260 _aMexico, DF (Mexico)
_bCIMMYT :
_c2003
300 _ap. 180-181
340 _aPrinted
520 _aCharacterization 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).
546 _aEnglish
591 _a0309|AGRIS 0301|AL-Maize Program
593 _aJuan Carlos Mendieta
595 _aCPC
650 1 0 _aCrossbreeding
650 1 7 _aGermplasm
_gAGROVOC
_2
_91136
650 1 0 _91145
_aHeterosis
_gAGROVOC
650 1 7 _aInbred lines
_gAGROVOC
_2
_91155
650 1 7 _aMaize
_gAGROVOC
_2
_91173
650 1 0 _91151
_aHybrids
_gAGROVOC
650 1 7 _aPlant breeding
_gAGROVOC
_2
_91203
700 1 _aLi, X.H.,
_ecoaut.
700 1 _aTian, Q.Z.,
_ecoaut.
700 1 _aXia, X.C.,
_ecoaut.
700 1 _aZhang, S.H.,
_ecoaut.
942 _cPRO
999 _c6996
_d6996