Ploidy effect and genetic architecture exploration of stalk traits using DH and its corresponding haploid populations in maize.

ABSTRACT:

Background

Doubled haploid (DH) lines produced via in vivo haploid induction have become indispensable in maize research and practical breeding, so it is important to understand traits characteristics in DH and its corresponding haploids which derived from each DH lines. In this study, a DH population derived from Zheng58 × Chang7-2 and a haploid population, were developed, genotyped and evaluated to investigate genetic architecture of eight stalk traits, especially rind penetrometer resistance (RPR) and in vitro dry matter digestion (IVDMD), which affecting maize stalk lodging-resistance and feeding values, respectively.

Results

Phenotypic correlation coefficients ranged from 0.38 to 0.69 between the two populations for eight stalk traits. Heritability values of all stalk t

SUBMITTER: Meng Y 

PROVIDER: S-EPMC4766647 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature