Articles
The effect of 5 cycles of biparental mass selection on a narrow base maize population based on phenotype, combining ability, and SSR analyses 
Lujiang Lim, Wensheng Chen, Kui Xiang, Lana M Reid, Hai Lan, Kecheng Yang, Min Zhang, Guangtang Pan, Tingzhao Rong
Abstract
Five cycles of biparental mass selection (MS) were carried out to improve the narrow-base maize population P4C0. In different ecological environments, the phenotypes of the developed populations were analyzed, the combining abilities were tested according to an incomplete diallel model to study the effects of selection, and the effects of MS on genetic diversity of the populations were also analyzed by using 51 pairs of SSR markers. It was found that MS was effective in improving the main traits and general combing ability (GCA), and it was effective on maintain¬ing the genetic diversity of the population. At the same time, the genetic structure was changed with advance of selection.
Keywords
maize, narrow base population, recurrent selection, effect of improvement, genetic diversity, SSR
Maydica - A journal devoted to maize and allied species
ISSN: 2279-8013