Two Distinct Genotypes of Spissistilus festinus (Say, 1830) Reproduce and Differentially Transmit Grapevine Red Blotch Virus

Two phenotypically similar but genetically distinct genotypes of Spissistilus festinus (Say, 1830) (Hemiptera: Membracidae), a pest of legume crops in Southern United States and a vector of grapevine red blotch virus (GRBV) in California vineyards, exist. No information is available on whether the t...

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Vydané v:Insects (Basel, Switzerland) Ročník 14; číslo 10; s. 831
Hlavní autori: Flasco, Madison T., Fuchs, Marc F.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Basel MDPI AG 23.10.2023
MDPI
Predmet:
acquisition
Adults
Blotch
California
Compatibility
Copy number
Cultivars
Cytochrome
ecology
Females
Geminiviridae
Genomes
genotype
Genotype & phenotype
Genotypes
Grablovirus
Grapevine red blotch virus
Grapevines
Insects
Legumes
Load distribution
Males
Mating
Morphology
Offspring
pests
Phylogenetics
Physical characteristics
Physical properties
progeny
Salivary gland
Salivary glands
Spissistilus festinus
Spissistilus festinus
transmission
viral genome
Viruses
Wineries & vineyards
North Carolina
United States > US
Taiwan
Georgia
California
Virginia
South Carolina
ISSN:2075-4450, 2075-4450
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Shrnutí:Two phenotypically similar but genetically distinct genotypes of Spissistilus festinus (Say, 1830) (Hemiptera: Membracidae), a pest of legume crops in Southern United States and a vector of grapevine red blotch virus (GRBV) in California vineyards, exist. No information is available on whether the two S. festinus genotypes, i.e., California (CA) and Southeastern (SE), are sexually compatible or whether the SE genotype can transmit GRBV. In this study, we established mixed mating S. festinus pairs for which the F1 offspring varied phenotypically compared with the offspring of same genotype pairs but acquired GRBV isolate NY175 at similar rates (p = 0.96) and with a similar viral genome copy number (p = 0.34). Likewise, rates of GRBV acquisition were alike for the two parental CA (58%, 61/105) and SE (61%, 65/106) genotypes (p = 0.74), though the GRBV copy number in the salivary glands was overall significantly higher for SE than CA individuals (p = 0.02). Furthermore, the GRBV transmission rate was significantly higher for the SE genotype (89%, 16/18) than the CA genotype (50%, 8/16) (p = 0.04). These results revealed the existence of two sexually compatible S. festinus genotypes with distinct GRBV transmission abilities, suggesting the need to study GRBV ecology in Southeastern United States and areas where the two genotypes might co-exist.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
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ISSN:2075-4450
2075-4450
DOI:10.3390/insects14100831