Mapping quantitative trait loci of Meloidogyne graminicola resistance and tolerance in a recombinant inbred line population of Oryza glaberrima × O. sativa
Host response of BC2F3 recombinant inbred line (RIL) population derived from a cross between African rice (CG14) and Asian rice (IR64) genotypes was evaluated in the field and quantitative trait loci (QTLs) that confer resistance and tolerance to Meloidogyne graminicola were mapped using SSR markers...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Brill
2019
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| Online Access: | https://hdl.handle.net/10568/164753 |
| _version_ | 1855535966812372992 |
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| author | Lawilao, Judith Galeng Swamy, B.P. Mallikarjuna Kumar, Arvind Cabasan, Ma. Teodora Nadong De Waele, Dirk |
| author_browse | Cabasan, Ma. Teodora Nadong De Waele, Dirk Kumar, Arvind Lawilao, Judith Galeng Swamy, B.P. Mallikarjuna |
| author_facet | Lawilao, Judith Galeng Swamy, B.P. Mallikarjuna Kumar, Arvind Cabasan, Ma. Teodora Nadong De Waele, Dirk |
| author_sort | Lawilao, Judith Galeng |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Host response of BC2F3 recombinant inbred line (RIL) population derived from a cross between African rice (CG14) and Asian rice (IR64) genotypes was evaluated in the field and quantitative trait loci (QTLs) that confer resistance and tolerance to Meloidogyne graminicola were mapped using SSR markers. Of the 155 BC2F3 progenies evaluated, 23 were resistant and six were partially resistant based on the number of second-stage juveniles (J2) per root system and J2 per g roots. Based on yield reduction, 23 progenies were identified as tolerant and 14 were less sensitive to M. graminicola infection. QTLs related to resistance were detected on chromosomes 6, 7 and 12. QTL for tolerance linked to percentage yield reduction was mapped on chromosome 5. QTLs linked to fresh root weight, dry root weight, dry shoot weight, percentage filled grains per panicle and yields were also mapped. QTLs identified will be useful in a breeding programme to develop M. graminicola-resistant and tolerant rice cultivars. |
| format | Journal Article |
| id | CGSpace164753 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Brill |
| publisherStr | Brill |
| record_format | dspace |
| spelling | CGSpace1647532024-12-22T05:44:59Z Mapping quantitative trait loci of Meloidogyne graminicola resistance and tolerance in a recombinant inbred line population of Oryza glaberrima × O. sativa Lawilao, Judith Galeng Swamy, B.P. Mallikarjuna Kumar, Arvind Cabasan, Ma. Teodora Nadong De Waele, Dirk agronomy and crop science ecology evolution behavior and systematics Host response of BC2F3 recombinant inbred line (RIL) population derived from a cross between African rice (CG14) and Asian rice (IR64) genotypes was evaluated in the field and quantitative trait loci (QTLs) that confer resistance and tolerance to Meloidogyne graminicola were mapped using SSR markers. Of the 155 BC2F3 progenies evaluated, 23 were resistant and six were partially resistant based on the number of second-stage juveniles (J2) per root system and J2 per g roots. Based on yield reduction, 23 progenies were identified as tolerant and 14 were less sensitive to M. graminicola infection. QTLs related to resistance were detected on chromosomes 6, 7 and 12. QTL for tolerance linked to percentage yield reduction was mapped on chromosome 5. QTLs linked to fresh root weight, dry root weight, dry shoot weight, percentage filled grains per panicle and yields were also mapped. QTLs identified will be useful in a breeding programme to develop M. graminicola-resistant and tolerant rice cultivars. 2019 2024-12-19T12:54:15Z 2024-12-19T12:54:15Z Journal Article https://hdl.handle.net/10568/164753 en Brill Lawilao, Judith Galeng; Swamy, B.P. Mallikarjuna; Kumar, Arvind; Cabasan, Ma. Teodora Nadong and De Waele, Dirk. 2019. Mapping quantitative trait loci of Meloidogyne graminicola resistance and tolerance in a recombinant inbred line population of Oryza glaberrima × O. sativa. Nematol., Volume 21 no. 4 p. 401-417 |
| spellingShingle | agronomy and crop science ecology evolution behavior and systematics Lawilao, Judith Galeng Swamy, B.P. Mallikarjuna Kumar, Arvind Cabasan, Ma. Teodora Nadong De Waele, Dirk Mapping quantitative trait loci of Meloidogyne graminicola resistance and tolerance in a recombinant inbred line population of Oryza glaberrima × O. sativa |
| title | Mapping quantitative trait loci of Meloidogyne graminicola resistance and tolerance in a recombinant inbred line population of Oryza glaberrima × O. sativa |
| title_full | Mapping quantitative trait loci of Meloidogyne graminicola resistance and tolerance in a recombinant inbred line population of Oryza glaberrima × O. sativa |
| title_fullStr | Mapping quantitative trait loci of Meloidogyne graminicola resistance and tolerance in a recombinant inbred line population of Oryza glaberrima × O. sativa |
| title_full_unstemmed | Mapping quantitative trait loci of Meloidogyne graminicola resistance and tolerance in a recombinant inbred line population of Oryza glaberrima × O. sativa |
| title_short | Mapping quantitative trait loci of Meloidogyne graminicola resistance and tolerance in a recombinant inbred line population of Oryza glaberrima × O. sativa |
| title_sort | mapping quantitative trait loci of meloidogyne graminicola resistance and tolerance in a recombinant inbred line population of oryza glaberrima o sativa |
| topic | agronomy and crop science ecology evolution behavior and systematics |
| url | https://hdl.handle.net/10568/164753 |
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