Identification of two new QTLs of maize (Zea mays L.) underlying kernel row number using the HNAU-NAM1 population.

ABSTRACT:

Background

Maize kernel row number (KRN) is one of the most important yield traits and has changed greatly during maize domestication and selection. Elucidating the genetic basis of KRN will be helpful to improve grain yield in maize.

Results

Here, we measured KRN in four environments using a nested association mapping (NAM) population named HNAU-NAM1 with 1,617 recombinant inbred lines (RILs) that were derived from 12 maize inbred lines with a common parent, GEMS41. Then, five consensus quantitative trait loci (QTLs) distributing on four chromosomes were identified in at least three environments along with the best linear unbiased prediction (BLUP) values by the joint linkage mapping (JLM) method. These QTLs were further validated by the separate linkage mapping (SLM) and g

SUBMITTER: Fei X 

PROVIDER: S-EPMC9380338 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature