TABLE 3

Average parental and testcross progeny phenotypes

TraitA158 maize (mean ± SE)mexicanaa,b (mean ± SE)parviglumisb,c (mean ± SE)TC1 progeny (mean ± SE)
DISA0220.76 ± 0.04
LBIL0.43 ± 0.0213.38 ± 0.7715.16 ± 0.684.17 ± 0.15
LIBN03.33 ± 0.425.09 ± 0.940.27 ± 0.05
PEDS0%100%100%21% ± 1.4%
PROL011.04 ± 0.5711.24 ± 0.505.84 ± 0.11
RANK6.56 ± 0.14223.52 ± 0.05
STAM0%99% ± 0.5%97% ± 1.4%23% ± 0.2%
  • The average phenotypes are listed in trait units (see text). A158 maize was the isogenic maize line to which the ssp. mexicana by ssp. parviglumis hybrid plant was crossed to create the testcross population.

  • a Twenty-one plants representing seven ssp. mexicana accessions were analyzed.

  • b Subspecies by phenotype t-tests (P = 0.05) revealed that ssp. mexicana and ssp. parviglumis are phenotypically equivalent for each of the four traits for which they are variable.

  • c Twenty-one plants representing seven ssp. parviglumis accessions were analyzed.