Identification of Husweet Family in Pitaya (Hylocereus Undatus) and Key Roles of Husweet4a in Sugar Accumulation

Jiang, Rui; Wu, Limin; Zeng, Jianmei; Shah, Kamran; Zhang, Rong; Qin, Yonghua; Zhang, Zhike

doi:10.2139/ssrn.4385502

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In apples, the sugar transport protein MdSWEET9b contributes to sugar accumulation, where MdSWEET9b specifically transports sucrose, facilitating regular yeast development and total sugar content 23 . In Hylocereus undatus , HuSWEET12a/13d regulates fruit sugar accumulation, and transgenic plants overexpressing these genes show higher levels of sugar accumulation 24 . The activation of CitSWEET6 expression in Wenzhou honey orange promotes fructose accumulation 25 .…”

Section: Discussionmentioning

confidence: 99%

Wampee chromosome-level reference genome elucidates fruit sugar-acid metabolism

Chen,

Wang,

Wang

et al. 2024

Preprint

View full text Add to dashboard Cite

Wampee (Clausena lansium) is an economically significant subtropical fruit tree widely cultivated in Southern China. High-quality genomic resources are unavailable, but they are essential for functional genomics and germplasm enhancement of wampee. Here, we provide a chromosome-level genome sequence for the wampee cultivar JinFeng and a population genomic analysis of 266 accessions. The 297.1 Mb wampee genome, containing nine chromosomes with a scaffold N50 of 29.2 Mb and encoding 23,468 protein-coding genes, showed a significant improvement over the previous version. We dissected the wampee population structure and genetic differentiation in China using population genomic analysis, which detected 110 and 671 genes under a selective sweep associated with sour and sweet wampee evolution in domesticated clones, respectively. Homozygous non-synonymous single nucleotide polymorphisms are likely associated with fruit flavor differentiation. A genome-wide association study identified 220 remarkable marker-trait associations for total acid content, harboring 289 genes encoding transcription factors, transporters, and enzymes involved in sugar and acid metabolism, which are potentially useful for sour and sweet taste development in wampee fruit. Furthermore, the ethylene response factor family gene ClERF061 and the SWEET family gene ClSWEET7 were identified. Linkage assessment between the relative expression levels of ClERF061 or ClSWEET7 and the total acid/total sugar contents implied their potential involvement in sugar-acid metabolism in wampee fruits. High-quality genome resources are valuable for expediting wampee research and genome-assisted breeding.

show abstract

Section: Discussionmentioning

confidence: 99%