Journal of Entomological Science (2021) 56, 43-52

Karen Harris-Shultz and Xinzhi Ni (2021)
A sugarcane aphid (Hemiptera: Aphididae) "super-clone" remains on U.S. sorghum and Johnsongrass and feeds on giant Miscanthus
Journal of Entomological Science 56 (1), 43-52
Abstract: Since 2013, the sugarcane aphid, Melanaphis sacchari Zehntner, has been a perennial pest to U.S. sorghum, Sorghum bicolor (L.) Moench, production with yield declines in susceptible hybrids ranging from 50 to 100%. Previous studies have found that a single clonal genotype predominates in samples collected from sugarcane (Saccharum spp.), sorghum, and Johnsongrass (Sorghum halepense [L.] Persoon), from 2013 to 2017 in the continental United States. We sought to determine if the "super-clone" persists in sugarcane aphid samples collected in 2018 from five U.S. states and one territory and to identify the multilocus lineage of samples collected in 2018–2019 from a new host, giant miscanthus, Miscanthus sinensis× Miscanthus sacchariflorus Greef and Deuter ex Hodkinson and Renvoize. Thirty-one samples collected from Columbus grass (Sorghum almum Parodi), Johnsongrass, sorghum, and giant miscanthus in 2018 were genotyped using 9 simple sequence repeat markers; 29 samples had identical alleles to the multilocus lineage F super-clone. All samples (n = 7) collected from giant miscanthus in 2018–2019 also had identical alleles to the predominant genotype.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Karen Harris-Shultz, Xinzhi Ni

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Melanaphis sacchari	Sorghum (crop)	U.S.A. (SE)
	Melanaphis sacchari	Miscanthus (crop)