Detailed Information

Cited 8 time in webofscience Cited 9 time in scopus
Metadata Downloads

Comparative transcriptome profiling of two sweetpotato cultivars with contrasting flooding stress tolerance levels

Authors
Park, Sul-UKim, Yun-HeeLee, Chan-JuKim, So-EunLim, Ye-HoonYoon, Ung-HanKim, Ho SooKwak, Sang-Soo
Issue Date
Dec-2020
Publisher
한국식물생명공학회
Keywords
Comparative transcriptomics; Flooding stress; MAPK signal transduction; Plant hormone; Sweetpotato
Citation
Plant Biotechnology Reports, v.14, no.6, pp 743 - 756
Pages
14
Indexed
SCIE
SCOPUS
KCI
Journal Title
Plant Biotechnology Reports
Volume
14
Number
6
Start Page
743
End Page
756
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/5837
DOI
10.1007/s11816-020-00650-5
ISSN
1863-5466
1863-5474
Abstract
Sweetpotato (Ipomoea batatas [L.] Lam) is an important starch crop that ensures food and nutrition security in the era of climate change. Sweetpotato is tolerant to environmental stresses such as drought, high temperature, and high salt, and therefore, is well adapted to marginal lands; however, it is relatively vulnerable to flooding stress, which severely reduces its yield and commercial value. To understand the flooding stress response of sweetpotato, we performed comparative transcriptome analysis of the leaves of two sweetpotato cultivars with contrasting flooding stress tolerance levels: Yeonjami (YJM; flooding tolerant) and Jeonmi (JM; flooding sensitive). Both cultivars were partially submerged in water for 0, 0.5, and 3 days. RNA-seq data of both cultivars revealed 14,229 differentially expressed genes (DEGs), which were categorized into seven clusters and six groups, based on the expression pattern of co-expressed DEGs and expression duration of DEGs, respectively. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses showed that DEGs of distinguishing functions between the two cultivars were involved in plant hormone signaling, carbohydrate transport, and mitogen-activated protein kinase (MAPK) signaling. Based on these results, we predict that YJM promotes adventitious growth, whereas JM exhibits shoot elongation under flooding stress. The expression levels of several key candidate genes involved in flooding tolerance correlated well with the comparative transcriptomics data. Overall, this study provides further insights into the molecular mechanism of flooding stress response in sweetpotato, and reveals candidate genes that could be used for developing new flooding tolerant sweetpotato cultivars.
Files in This Item
There are no files associated with this item.
Appears in
Collections
사범대학 > 생물교육과 > Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher Kim, Yun Hee photo

Kim, Yun Hee
사범대학 (생물교육과)
Read more

Altmetrics

Total Views & Downloads

BROWSE