Nonhost Kitaake rice displays phenotypic characteristics of host resistant wheat and molecular biomarkers of both resistant and susceptible wheat in response to feeding by Hessian fly larvae

Subramanyam, Subhashree; Nemacheck, Jill A.

doi:10.1080/17429145.2021.1912421

Cited by 2 publications

(2 citation statements)

References 47 publications

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“…The Hessian fly (HF), Mayetiola destructor (Say), belonging to the order Diptera (family Cecidomyiidae) is one of the major destructive pests of wheat worldwide resulting in significant yield reduction with economic consequences (Berzonsky et al., 2003; Schmid et al., 2018). Although wheat is the primary preferred host, this insect parasitizes several cereals, including rye, barley, oat, rice, and wild grasses (Chen, Liu, et al., 2009; Hargarten et al., 2017; Subramanyam & Nemacheck, 2021a; Subramanyam et al., 2019). The newly hatched first instar HF larvae crawl to the crown of young susceptible wheat seedlings, feed voraciously, and complete their life cycle within 28–30 days (Cartwright & Wiebe, 1936).…”

Section: Introductionmentioning

confidence: 99%

Identification of new sources of Hessian fly resistance in tetraploid wheat

et al. 2023

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Hessian fly (HF) (Mayetiola destructor Say) is an obligate destructive pest of wheat (Triticum aestivum L.) causing severe economic losses worldwide. Deployment of resistant wheat cultivars harboring HF resistance (H) genes is still the most effective and economical method to manage this insect pest. However, extensive use of H genes can impose selection pressure on HF populations, leading to the development of virulent biotypes that can breakdown plant resistance. Further, increase in environmental temperatures to 25–30°C during the wheat‐growing season can also negatively impact HF resistance, thereby necessitating the identification of new and novel sources of HF resistance and evaluate them for temperature sensitivity. In the current study, we evaluated the phenotypic response of 254 Triticum turgidum (L.) wheat accessions of African origin to Biotype L HF infestation. Of these, 10 accessions exhibited >70% resistance to Biotype L HF infestation. These 10 resistant accessions also showed >70% resistance when screened with vH13 HF biotype. Additionally, these HF resistant lines were evaluated for expression of resistance at a higher temperature of 30°C, and three tetraploid wheat accessions that maintained 100% resistance to Biotype L HF at the increased temperature were identified. These newly identified HF resistant lines offer valuable tools to breeders and farmers that can be used in breeding programs to develop cultivars for durable resistance to HF and efficient crop management.

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Section: Introductionmentioning

confidence: 99%

Identification of new sources of Hessian fly resistance in tetraploid wheat

et al. 2023

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“…To overcome this barrier, we recently explored and documented the suitability of utilizing less complex genomes for undertaking functional characterization of candidate Hessian-fly-responsive genes [ 25 , 26 , 27 ]. The small grass species Brachypodium distachyon (Bd), or the purple false brome, is one such model genome with a small size (diploid, 355 Mb), short life cycle, and availability of genetic resources [ 28 , 29 ], besides serving as a model system for nonhost resistance for several pathogens [ 30 ] and insects [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

Comparative Hessian Fly Larval Transcriptomics Provides Novel Insight into Host and Nonhost Resistance

Subramanyam

Nemacheck

Xie

et al. 2021

IJMS

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The Hessian fly is a destructive pest of wheat. Employing additional molecular strategies can complement wheat’s native insect resistance. However, this requires functional characterization of Hessian-fly-responsive genes, which is challenging because of wheat genome complexity. The diploid Brachypodium distachyon (Bd) exhibits nonhost resistance to Hessian fly and displays phenotypic/molecular responses intermediate between resistant and susceptible host wheat, offering a surrogate genome for gene characterization. Here, we compared the transcriptomes of Biotype L larvae residing on resistant/susceptible wheat, and nonhost Bd plants. Larvae from susceptible wheat and nonhost Bd plants revealed similar molecular responses that were distinct from avirulent larval responses on resistant wheat. Secreted salivary gland proteins were strongly up-regulated in all larvae. Genes from various biological pathways and molecular processes were up-regulated in larvae from both susceptible wheat and nonhost Bd plants. However, Bd larval expression levels were intermediate between larvae from susceptible and resistant wheat. Most genes were down-regulated or unchanged in avirulent larvae, correlating with their inability to establish feeding sites and dying within 4–5 days after egg-hatch. Decreased gene expression in Bd larvae, compared to ones on susceptible wheat, potentially led to developmentally delayed 2nd-instars, followed by eventually succumbing to nonhost resistance defense mechanisms.

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Nonhost Kitaake rice displays phenotypic characteristics of host resistant wheat and molecular biomarkers of both resistant and susceptible wheat in response to feeding by Hessian fly larvae

Cited by 2 publications

References 47 publications

Identification of new sources of Hessian fly resistance in tetraploid wheat

Identification of new sources of Hessian fly resistance in tetraploid wheat

Comparative Hessian Fly Larval Transcriptomics Provides Novel Insight into Host and Nonhost Resistance

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