Transcriptome analysis provides insights into the responses of sweet potato to sweet potato virus disease (SPVD)

Abstract

Highlights Transcriptome responses in sweet potato infected with SPCSV and/or SPFMV were studied. Numerous genes, miRNAs and phasiRNAs were responsive mainly to the dual infection. Salicylic acid-mediated pathways play important roles in antiviral defense responses.

Targeting of SPCSV‐RNase3 via CRISPR‐Cas13 confers resistance against sweet potato virus disease

“…According to the Food and Agriculture Organization of the United Nations (FAO) report, the global production of sweet potatoes was 92 million tonnes in 2018, half of which was produced by China (53 million tonnes) (FAOSTAT, 2018 ; http://www.fao.org/faostat/en/ ). In sub‐Saharan African countries, such as Nigeria, Tanzania, Ethiopia, and Uganda, orange‐fleshed sweet potato varieties that contain abundant β‐carotene are important food sources of provitamin A that can be used to combat vitamin A deficiency in local residents and thus are cultivated in large land areas (Bednarek et al, 2021 ; Jan et al, 2017 ). However, the average sweet potato production in these countries is low, at approximately a third of that in China (Bednarek et al, 2021 ; Jan et al, 2017 ).…”

“…In sub‐Saharan African countries, such as Nigeria, Tanzania, Ethiopia, and Uganda, orange‐fleshed sweet potato varieties that contain abundant β‐carotene are important food sources of provitamin A that can be used to combat vitamin A deficiency in local residents and thus are cultivated in large land areas (Bednarek et al, 2021 ; Jan et al, 2017 ). However, the average sweet potato production in these countries is low, at approximately a third of that in China (Bednarek et al, 2021 ; Jan et al, 2017 ).…”

“…As a vegetatively propagated root crop, sweet potato yield is largely reduced due to the continuous accumulation of viral diseases over generations (Loebenstein et al, 2015 ). The most devastating viral disease in sweet potatoes is known as sweet potato virus disease (SPVD), caused by the synergistic co‐infection by sweet potato chlorotic stunt virus (SPCSV; genus Crinivirus , family Closteroviridae ) and sweet potato feathery mottle virus (SPFMV; genus Potyvirus , family Potyviridae ) (Bednarek et al, 2021 ; Gibson et al, 2004 ; Karyeija et al, 2000 ; Loebenstein et al, 2015 ; Wang et al, 2019 ). SPVD can cause yield losses of 80%–90% in infected sweet potato plants (Bednarek et al, 2021 ; Loebenstein et al, 2015 ).…”

Influence of Drying Methods and Vacuum Impregnation on Selected Quality Factors of Dried Sweet Potato

“…According to global crop statistics, sweet potato (Ipomoea batatas) is one of the most important food crops and offers significant nutritional and economic benefits [15]. Sweet potatoes are rich in vitamins, such as B, C, E, and K, complex minerals (calcium, potassium, iron, phosphorus, potassium, zinc, and sodium), carbohydrates, dietary fiber, and other nutrients-the amount of which depends on the variety [15,16]. Orange-colored sweet potatoes are also a rich source of the cancer-fighting antioxidant β-carotene.…”

“…Orange-colored sweet potatoes are also a rich source of the cancer-fighting antioxidant β-carotene. The human body can convert β-carotene into vitamin A, which is essential for a healthy immune system [15]. Researchers have attempted to use sweet potatoes to make sweet bread [17] and cookies [18].…”