The Cultivation Techniques and Quality Characteristics of a New Germplasm of Vitis adenoclada Hand.-Mazz Grape

Abstract

Vitis adenoclada Hand.-Mazz is a special wild grape resource that is often confused with Vitis heyneana Roem. & Schult in research or production practice, and there are few comprehensive studies on this species in recent years. “Gui Heizhenzhu No. 3” (GH3), as a new germplasm of V. adenoclada found in Guangxi, China, has many advantages, such as good quality and strong adaptability. In this paper, an attempt was made to introduce the breeding process of GH3, including a brief description of its botanical characteristics and its cultivation and management techniques in karst rocky desertification mountains. Meanwhile, its quality-related parameters were evaluated by widely targeted metabolomic analysis. This study indicated that GH3 had the typical botanical characteristics of V. adenoclada, but with larger fruit and a higher sugar content compared to wild or other V. adenoclada grape varieties. Metabolomic study of the target variety showed that glucose and citric acid were the main sugar and acid components in fully ripened berries. Moreover, cyanidin-3-O-glucoside presented as the characteristic anthocyanin. In addition, B-ring dihydroxylation was more active than trihydroxylation in the GH3 berry. Several of its botanical and quality characteristics highlight the unique genetic background of this variety. Thus, it has an important guiding significance and a scientific theoretical basis for identifying, exploiting, and utilizing East Asian wild grape resources.

GoSTR, a negative modulator of stem trichome formation in cotton

“…Among the 17 G. hirsutum varieties of “GG” haplotype, nice accessions belonged to G. hirsutum race palmeri, and the remaining eight G. hirsutum accessions were Hanmian 802, Emian 6, Ekangmian 6, Ekangmian 7, Ekangmian 9, Huakangmian 1, Emian 20, and Cestam 86‐1. As reported, palmeri, Ekangmian 6, and Ekangmian 7 displayed sparse hairs on their main stems, which matched well with their haplotype (Wang & Zhou, 1998; Wu et al., 2002; Yu, 2005; Zhou & Yang, 1999). We observed the stem phenotype of palmeri planted at the National Wild Cotton Nursery in Sanya, China, and it displayed a hairless stem phenotype as predicted (Figure S2).…”

Virome of Grapevine Germplasm from the Anapa Ampelographic Collection (Russia)

“…Germplasm accessions are maintained in repositories located in European countries [10,11], the USA [12], Mexico [13], and Australia [14]. Collections are also grown in the Caucasus, Central Asia, and Mediterranean basin [15][16][17].…”

Chromosome-scale genomics, metabolomics, and transcriptomics provide insight into the synthesis and regulation of phenols in Vitis adenoclada grapes

“…Flavonoids in grapes mainly include flavonols, flavanols, and anthocyanins ( Wu et al., 2020 ). In this study, the flavonol content in GH4 and GH6 was the highest among all varieties.…”

“…Since 2011, research has been carried out to breed the V. adenoclada varieties. Thus far, a series of excellent V. adenoclada varieties have been established and designated the “Guiheizhenzhu” series ( Wu et al., 2020 ). They adapt to the climate and environmental conditions of the south tropical and subtropical regions, and exhibit resistance to heat and humidity, fungal diseases and pests, drought, and soil infertility ( Wu et al., 2020 ).…”