Title
A Transgenic Study on Affecting Potato Tuber Yield by Expressing the Rice Sucrose Transporter Genes OsSUT5Z and OsSUT2M
Author
Sun, A.
Dai, Y.
Zhang, X.
Li, C.
Meng, K.
Xu, H.
Wei, X.
Xiao, G.
Ouwerkerk, P.B.
Wang, M.
Zhu, Z.
Publication year
2011
Abstract
In many plants, sucrose transporters are essential for both sucrose exports from sources and imports into sinks, indicating a function in assimilate partitioning. To investigate whether sucrose transporters can improve the yield of starch plant, potato plants (Solanum tuberosum L. cv. Désirée) were transformed with cDNAs of the rice sucrose transporter genes OsSUT5Z and OsSUT2M under the control of a tuber-specific, class-I patatin promoter. Compared to the controls, the average fructose content of OsSUT5Z transgenic tubers significantly increased. However, the content of the sugars and starch in the OsSUT2M transgenic potato tubers showed no obvious difference. Correspondingly, the average tuber yield, average number of tubers per plant and average weight of single tuber showed no significant difference in OsSUT2M transgenic tubers with controls. In the OsSUT5Z transgenic lines, the average tuber yield per plant was 1.9-fold higher than the controls, and the average number of tubers per plant increased by more than 10 tubers on average, whereas the average weight of a single tuber did not increase significantly. These results suggested that the average number of tubers per plant showed more contribution than the average weight of a single tuber to the tuber yield per plant. © 2011 Institute of Botany, Chinese Academy of Sciences.
Subject
Staf
PO - Projectorganisatie
EELS - Earth, Environmental and Life Sciences
Health
OsSUT2M
OsSUT5Z
Rice sucrose transporter
Transgenic potato
Tuber yield
To reference this document use:
http://resolver.tudelft.nl/uuid:2ca77034-ea6e-40c2-9c4f-e28ad58246a6
DOI
https://doi.org/10.1111/j.1744-7909.2011.01063.x
TNO identifier
431395
ISSN
1672-9072
Source
Journal of Integrative Plant Biology, 53 (7), 586-595
Document type
article