Table 1.
The cloned BPH resistance genes.
| Gene | Chr | Location (bp)(a) | MSU_ID | RAPDB_ID | Encoding protein | Resistant/donor allele | Inheritance pattern of R- allele | Reference |
|---|---|---|---|---|---|---|---|---|
| BPH14 | 3 | 35,693,286 | Os03g63150 | Os03g0848700 | NBS-LRR | Oryza officinalis IL | Dominant | Du et al., 2009 |
| BPH30 | 4 | 929,966 | Os04g02520 | – | Protein with two leucine-rich domains (LRDs) | AC-1613 | Dominant | Shi et al., 2021 |
| BPH17(b) | 4 | 6,940,275 | Os04g12540–Os04g12560–Os04g12580 | Os04g0201900–Os04g0202300–Os04g0202500 | A cluster of three genes encoding plasma membrane-localized lectin receptor kinases (OsLecRK1-OsLecRK3) | Rathu Heenati | Dominant | Liu et al., 2015 |
| BPH6 | 4 | 21,396,879 | Os04g35210 | Os04g0431700 | Atypical LRR | Swarnalata | Dominant | Guo et al., 2018 |
| BPH29 | 6 | 484,346 | Os06g01860 | Os06g0107800 | B3 domain-containing protein | RBPH54 (Oryza rufipogon IL) | Recessive | Wang Y, et al., 2015 |
|
BPH32
=BPH3© |
6 | 1,223,069 | Os06g03240 | Os06g0123200 | Unknown short consensus repeat (SCR) domain-containing protein | Ptb33 | Dominant | Ren et al., 2016 |
| BPH1=BPH10=BPH18=BPH21/BPH2=BPH26/BHP7/BPH9(d) | 12 | 22,886,341 | Os12g37290 | Os12g0559400 | NBS-LRR | IR65482-7-216-1-2 (BPH18), ADR52 (BPH26), T12 (BPH7), Pokkali (BPH9) | Dominant | Tamura et al., 2014 (BPH26), Ji et al., 2016 (BPH18), Zhao et al., 2016 (BPH9 and other alleles) |
“=“ means the identical allele, and “/” means the different alleles at the same locus.
(a)Location of the translation start codon (ATG) of the cloned genes on the rice reference genome IRGSP1.0 (https://rapdb.dna.affrc.go.jp/).
(b)BPH17 was identified from the mapping populations derived from the cross Rathu Heenati (R) and 02428 variety (S) by Sun et al. (2005). In a subsequent study, Liu et al. (2015) cloned the BPH resistance gene from the same materials, but the gene was probably mistakenly named BPH3 in the publication. Hence, to avoid confusion with previously reported BPH3 QTL (Jairin et al., 2007), the original name QTL name (BPH17) was given in this review.
(c)BPH32 was identified by using bioinformatics and transgenic gene validation experiments by Ren et al. (2016) from the previously fine-mapped BPH3 locus (Jairin et al., 2007).
(d)Eight BPH genes clustered on Chr 12L were identified as multi-alleles with four different sequences (four allele types) at the same locus (Zhao et al., 2016). However, the NILs with the same allele types (BPH10, BPH18, and BPH21) showed a bit different BPH resistance among the same allele types (Jena et al., 2017).