ITRAQ-Based Comparative Proteomic Analysis of the Roots of TWO Winter Turnip Rapes (Brassica rapa L.) with Different Freezing-Tolerance.

ABSTRACT: The freezing tolerance of roots is crucial for winter turnip rape (Brassica rapa L.) survival in the winter in Northwest China. Cold acclimation (CA) can alleviate the root damage caused by freezing stress. To acknowledge the molecular mechanisms of freezing tolerance in winter turnip rape, two Brassica rapa genotypes, freezing stressed after the induction of cold acclimation, were used to compare the proteomic profiles of roots by isobaric tags for relative and absolute quantification (iTRAQ). Under freezing stress (-4 °C) for 8 h, 139 and 96 differentially abundant proteins (DAPs) were identified in the roots of "Longyou7" (freezing-tolerant) and "Tianyou4" (freezing-sensitive), respectively. Among these DAPs, 91 and 48 proteins were up- and down-accumulated in "Longyou7", respectively,

SUBMITTER: Zeng X 

PROVIDER: S-EPMC6321220 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature