Table 2.
Tropical plant genes that can be edited by the CRISPR/Cas9 technology to improve plant tolerance to the abiotic and biotic stresses.
| Crop | Target gene(s) | Target traits/stress | References |
|---|---|---|---|
| Avocado | PAL and LOX | Anthracnose disease resistance | Bill et al., 2017 |
| Avocado | PaNPR2 and PaNPR4 | Phytophthora cinnamomi resistance | Backer et al., 2015 |
| Banana | MaSWEET-1a, MaSWEET-4b, MaSWEET-14b, MaSWEET-4c, MaSWEET-14c, MaSWEET-4d, MaSWEET-14d, and MaSWEET-14h | Foc 4 TR4 and abiotic stresses (cold and salt) resistance | Miao et al., 2017a |
| Banana | MaATG8s | Fusarium oxysporum f. sp. cubense (Foc) resistance | Wei et al., 2017b |
| Banana | Hrap, Pflp | Xanthomonas campestris pv. musacearum resistance | Tripathi et al., 2010, 2014; Namukwaya et al., 2012 |
| Banana | MaAPS1 and MaAPL3 | Abiotic stresses (cold and salt) and Fusarium Oxysporum f.sp. cubense (Foc) Tropical Race 4 (TR4) resistance | Miao et al., 2017b |
| Cassava | RXam1 | Xanthomonas axonopodis pv. manihotis (Xam) strain-specific resistance to XamCIO136 | Díaz Tatis et al., 2018 |
| Cassava | MeWRKY20-MeATG8a/8f/8h (MeATG8a, MeATG8f, MeATG8h) | Cassava bacterial blight (CBB), caused by Xanthomonas axonopodis pv. manihotis (Xam) resistance | Yan et al., 2017 |
| Cassava | MeDELLAs | Cassava bacterial blight (CBB) resistance | Li et al., 2018 |
| Cassava | MebZIPs (MebZIP3 and MebZIP5) | Cassava bacterial blight (CBB) resistance | Li X. et al., 2017 |
| Cassava | MeRAV1 and MeRAV2 | Cassava bacterial blight (CBB) resistance | Wei et al., 2017a |
| Cassava | MeKUPs | Abiotic stresses (salt, osmosis, cold, drought) resistance | Ou et al., 2018 |
| Cassava | MeMAPKKK | Abiotic stress (drought) resistance | Ye et al., 2017 |
| Coconut | PTI5 | Root wilt disease (RWD) resistance | Verma et al., 2017 |
| Coconut | NBS-LRR type RGAs | Coconut root (wilt) disease resistance | Rajesh et al., 2015 |
| Cotton | GhPIN1–3 and GhPIN2 | Abiotic stress (drought) resistance | He et al., 2017 |
| Cotton | GhRDL1 | Abiotic stress (drought) resistance | Dass et al., 2017 |
| Cotton | GhERF-IIb3 | Bacterial blight caused by Xanthomonas citri pv. malvacearum (Xcm) resistance | Cacas et al., 2017 |
| Date palm | Pdpcs and Pdmt | Abiotic stress (Cd and Cr) resistance | Chaâbene et al., 2018 |
| Date palm | Pdpcs and Pdmt | Abiotic stress (metals) resistance | Chaâbene et al., 2017 |
| Papaya | CpDreb2 | Abiotic stresses (drought, heat and cold) resistance | Arroyo-Herrera et al., 2016 |
| Papaya | CpRap2.4a and CpRap2.4b | Abiotic stresses (heat and cold) resistance | Figueroa-Yañez et al., 2016 |
| Sugarcane | ScGluA1 | Smut (Sporisorium scitamineum) resistance | Su et al., 2013 |
| Sugarcane | ScCAT1 | Smut (Sporisorium scitamineum) resistance | Su et al., 2014 |
| Sugarcane | ScAPX6 | Abscisic acid (ABA), methyl jasmonate (MeJA), and copper (Cu) stress resistance | Liu et al., 2017 |
| Sugarcane | ScGluD2 | Smut and abiotic stresses (salt and heavy metal) resistance | Su et al., 2016 |
| Sugarcane | ScChiIV1 and ScChiVI1 | Smut (Sporisorium scitamineum) resistance | Su et al., 2015 |
| Sugarcane | ScNsLTP | Abiotic stresses (drought and chilling) resistance | Chen Y. et al., 2017 |