Integrated Physiological and Transcriptomic Analyses Responses to Altitude Stress in Oat (Avena sativa L.).

ABSTRACT: Oat is an annual gramineous forage grass with the remarkable ability to survive under various stressful environments. However, understanding the effects of high altitude stresses on oats is poor. Therefore, the physiological and the transcriptomic changes were analyzed at two sites with different altitudes, low (ca. 2,080 m) or high (ca. 2,918 m), respectively. Higher levels of antioxidant enzyme activity, reactive oxygen and major reductions in photosynthesis-related markers were suggested for oats at high altitudes. Furthermore, oat yields were severely suppressed at the high altitude. RNA-seq results showed that 11,639 differentially expressed genes were detected at both the low and the high altitudes in which 5,203 up-regulated and 6,436 down-regulated. Gene Ontology and Kyoto Encyclop

SUBMITTER: Jinqiu Y 

PROVIDER: S-EPMC8248544 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature