Correction to: Improved insect resistance against Spodoptera litura in transgenic sweetpotato by overexpressing Cry1Aa toxin.

In Materials and method section, a sweetpotato variety "Taizhong-6" (China national number 2013003) should be renamed as Ayamurasaki".

Improved insect resistance against Spodoptera litura in transgenic sweetpotato by overexpressing Cry1Aa toxin.

Overexpressing the Cry1Aa gene in sweetpotato significantly reduced pest damage through disrupting the integrity of the midgut of Spodoptera litura larvae for resistance against target Lepidoptera insect pests in sweetpotato. Sweetpotato is susceptible to insect pests and diseases leading to yield losses during pest outbreaks. Lepidoptera insects such as S litura are especially important pests of sweetpotato.

NHX1 and eIF4A1-stacked transgenic sweetpotato shows enhanced tolerance to drought stress.

Co-expression of Na/H antiporter NHX1 and DEAD-box RNA helicase eIF4A1 from Arabidopsis positively regulates drought stress tolerance by improving ROS scavenging capacity and maintaining membrane integrity in sweetpotato. Plants evolve multiple strategies for stress adaptation in nature. To improve sweetpotato resistance to drought stress, transgenic sweetpotato plants overexpressing the Arabidopsis Na/H antiporter, NHX1, and the translation initiation factor elF4A1 were characterized for phenotypic traits and physiological performance.

Haplotype-resolved sweet potato genome traces back its hexaploidization history.

Here we present the 15 pseudochromosomes of sweet potato, Ipomoea batatas, the seventh most important crop in the world and the fourth most significant in China. By using a novel haplotyping method based on genome assembly, we have produced a half haplotype-resolved genome from ~296 Gb of paired-end sequence reads amounting to roughly 67-fold coverage. By phylogenetic tree analysis of homologous chromosomes, it was possible to estimate the time of two recent whole-genome duplication events as occurring about 0.

Elevated compartmentalization of Na+ into vacuoles improves salt and cold stress tolerance in sweet potato (Ipomoea batatas).

Salinity and low temperature are the main limiting factors for sweet potato (Ipomoea batatas) growth and agricultural productivity. Various studies have shown that plant NHX-type antiporter plays a crucial role in regulating plant tolerance to salt stress by intracellular Na(+) compartmentalization. The Arabidopsis thaliana AtNHX1 gene that encodes a vacuolar Na(+) /H(+) antiporter was introduced into the sweet potato cultivar Xushu-22 by Agrobacterium-mediated transformation to confer abiotic stress tolerance.