Exploring gene networks in two sunflower lines with contrasting leaf senescence phenotype using a system biology approach.

ABSTRACT:

Background

Leaf senescence is a complex process, controlled by multiple genetic and environmental variables. In sunflower, leaf senescence is triggered abruptly following anthesis thereby limiting the capacity of plants to keep their green leaf area during grain filling, which subsequently has a strong impact on crop yield. Recently, we performed a selection of contrasting sunflower inbred lines for the progress of leaf senescence through a physiological, cytological and molecular approach. Here we present a large scale transcriptomic analysis using RNA-seq and its integration with metabolic profiles for two contrasting sunflower inbred lines, R453 and B481-6 (early and delayed senescence respectively), with the aim of identifying metabolic pathways associated to leaf senescence.

SUBMITTER: Moschen S 

PROVIDER: S-EPMC6813990 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature