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The formation of seedless traits is regulated by multiple factors. AGLs, which belong to the MADS-box family, were reported to be important regulators in this process; however, the underlying mechanism remains elusive. Here, we identified the VvAGL sub-family genes during the seed abortion process in seedless grapevine cv. 'JingkeJing' and found 40 differentially expressed VvAGL members and 1069 interacting proteins in this process. Interestingly, almost all members and their interacting proteins involved in the tryptophan metabolic pathway (K14486) and participated in the phytohormone signalling (KO04075) pathway, including the growth hormone (IAA), salicylic acid (SA), abscisic acid (ABA), cytokinin (CTK), and ethylene signalling pathways. The promoters of AGL sub-family genes contain cis-elements in response to hormones such as IAA, ABA, CTK, SA, and ETH, implying that they might respond to multi-hormone signals and involve in hormone signal transductions. Further expression analysis revealed VvAGL6-2, VvAGL11, VvAGL62-11, and VvAGL15 had the highest expression at the critical period of seed abortion, and there were positive correlations between ETH-VvAGL15-VvAGL6-2, ABA-VvAGL80, and SA-VvAGL62 in promoting seed abortion but negative feedback between IAA-VvAGL15-VvAGL6-2 and CTK-VvAGL11. Furthermore, many genes in the IAA, ABA, SA, CTK, and ETH pathways had a special expressional pattern in the seed, whereby we developed a regulatory network mediated by VvAGLs by responding to multihormonal crosstalk during grape seed abortion. Our findings provide new insights into the regulatory network of VvAGLs in multi-hormone signalling to regulate grape seed abortion, which could be helpful in the molecular breeding of high-quality seedless grapes. [ABSTRACT FROM AUTHOR]

This document is a correction notice for an article titled "Geographical location influence 'Cabernet Franc' fruit quality in Shandong province" published in Scientific Reports. The correction adds an affiliation for one of the authors and updates the funding section to include additional sources of funding. The original article has been corrected. The authors of the article are Chaoping Wang, Xueqin Chen, Yanhua Ren, Xuxian Xuan, Tariq Pervaiz, Lingfei Shangguan, and Jinggui Fang. [Extracted from the article]

Grape fruit are harvested in the late summer or early fall and need to be stored at low temperatures to prevent enfeeblement and prolong their shelf-life. This study aimed to determine the effects of abscisic acid (ABA), brassinolide (BR) and ABA + BR (ABR) treatment on the berry quality of 'Shine Muscat' under low temperatures. ABA and BR maintained fruit appearance, cellular structure, weight, firmness. ABR treatments reduced the loss of fruit aroma. Furthermore, the transcriptome and metabolome analysis revealed that ABA, BR, and ABR treatments maintained the quality of fruits during the low temperatures period by influencing chlorophyll metabolism, carotenoid metabolism, flavonoid metabolism, unsaturated fatty acid, and terpene metabolism. These findings identify key genes and metabolites for ABA and BR-induced maintenance of grape fruit quality during cold storage, expanding our understanding of postharvest storage quality maintenance of grape fruit at the transcript and metabolic levels., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)

Grape quality is a key factor in determining wine quality, and it depends not only on management skills, but also on the geographic location of the producing area. In China, Shandong is the province with the largest wine production, and 'Cabernet Franc' is widely planted. This study evaluated the 'Cabernet Franc' fruit quality in relation to geographical conditions in five 'Cabernet Franc' producing districts of Shandong province, China, including Dezhou Aodeman Winery (DZ), Tai'an Zhongqingsongshi Winery (TA), Penglai Longhu Winery (PL), Rushan Taiyihu Winery (RS), and Rizhao Taiyangcheng Winery (RZ). At the time of veraison and maturity, fruit was harvested from five areas, and compared for cosmetic and internal fruit quality. The soluble sugar content in the Rizhao area was rich, and the weight and volume of single fruit were relatively large. The titratable acid of the berries in Tai'an area was high. RNA-seq analysis showed that the number of genes in the véraison stage was 19,571-20,750, and the number of genes in the mature stage was 19,176-20,735. The analysis found that areas with multiple high-quality characteristics tended to have more DEGs (differential expressed genes). And the DEGs in different areas were mainly distributed on chromosome 7, and at least on chromosome 15. DEGs in 5 areas were enriched on 855 GO terms and 116 KEGG pathways during berries development. Among them, it was found that the up/down-regulation of DEGs was related to the formation of berry quality, which helps to explain the impact of environment on grape quality components. In summary, this study is helpful to understand the influence of cultivation location on the quality of 'Cabernet Franc' in different production areas in Shandong province, and further provide a reference for the production of high-quality wine grapes and winemaking., (© 2023. The Author(s).)