Genetic basis of multiple resistance to the brown planthopper (Nilaparvata lugens stål) and the green rice leafhopper (nephotettix cincticeps uhler) in the rice cultivar ‘ASD7’ (oryza sativa L. ssp. indica)
The rice cultivar ASD7 (Oryza sativa L. ssp. indica) is resistant to the
brown planthopper (BPH; Nilaparvata lugens Stål) and the green
leafhopper (Nephotettix virescens Distant). Here, we analyzed multiple
genetic resistance to BPH and the green rice leafhopper (GRH;
Nephotettix cincticeps Uhler). Using two independent F2 populations
derived from a cross between ASD7 and Taichung 65 (Oryza sativa ssp.
japonica), we detected two QTLs (qBPH6 and qBPH12) for resistance to BPH
and one QTL (qGRH5) for resistance to GRH. Linkage analysis in BC2F3
populations revealed that qBPH12 controlled resistance to BPH and
co-segregated with SSR markers RM28466 and RM7376 in plants homozygous
for the ASD7 allele at qBPH6 Plants homozygous for the ASD7 alleles at
both QTLs showed a much faster antibiosis response to BPH than plants
homozygous at only one of these QTLs. It revealed that epistatic
interaction between qBPH6 and qBPH12 is the basis of resistance to BPH
in ASD7 In addition, qGRH5 controlled resistance to GRH and
co-segregated with SSR markers RM6082 and RM3381. qGRH5 is identical to
GRH1 Thus, we clarified the genetic basis of multiple resistance of ASD7
to BPH and GRH.
| Title: | Genetic basis of multiple resistance to the brown planthopper (Nilaparvata lugens stål) and the green rice leafhopper (nephotettix cincticeps uhler) in the rice cultivar ‘ASD7’ (oryza sativa L. ssp. indica) |
| Authors: | Tan, Van Mai Fujita, Daisuke Yoshimura, Atsushi Yasui, Hideshi |
| Keywords: | Brown planthopper;Multiple resistance;Marker-assisted selection;Green rice leafhopper;Genetic basis |
| Issue Date: | 2015 |
| Publisher: | Japanese Society of Breeding |
| Citation: | Scopus |
| Abstract: | The rice cultivar ASD7 (Oryza sativa L. ssp. indica) is resistant to the brown planthopper (BPH; Nilaparvata lugens Stål) and the green leafhopper (Nephotettix virescens Distant). Here, we analyzed multiple genetic resistance to BPH and the green rice leafhopper (GRH; Nephotettix cincticeps Uhler). Using two independent F2 populations derived from a cross between ASD7 and Taichung 65 (Oryza sativa ssp. japonica), we detected two QTLs (qBPH6 and qBPH12) for resistance to BPH and one QTL (qGRH5) for resistance to GRH. Linkage analysis in BC2F3 populations revealed that qBPH12 controlled resistance to BPH and co-segregated with SSR markers RM28466 and RM7376 in plants homozygous for the ASD7 allele at qBPH6 Plants homozygous for the ASD7 alleles at both QTLs showed a much faster antibiosis response to BPH than plants homozygous at only one of these QTLs. It revealed that epistatic interaction between qBPH6 and qBPH12 is the basis of resistance to BPH in ASD7 In addition, qGRH5 controlled resistance to GRH and co-segregated with SSR markers RM6082 and RM3381. qGRH5 is identical to GRH1 Thus, we clarified the genetic basis of multiple resistance of ASD7 to BPH and GRH. |
| Description: | Breeding Science, Volume 65, Issue 5, 19 December 2015, Pages 420-429 |
| URI: | http://repository.vnu.edu.vn/handle/VNU_123/29898 |
| ISSN: | 13447610 |
| Appears in Collections: | Bài báo của ĐHQGHN trong Scopus |
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