Quantitative Trait Loci Associated with Heat Tolerance in Rice (<i>Oryza sativa</i> L.)

Buu, Bui Chi; Ha, Pham Thi Thu; Tam, Bui Phuoc; Nhien, Tran Thi; Hiếu, Nguyễn Văn; Phuoc, Nguyen Trong; Giang, Ly Hau; Lang, Nguyen Thi

doi:10.9787/pbb.2014.2.1.014

Cited by 34 publications

(25 citation statements)

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“…The PCR products at locus RM3735 linked to QTL for heat tolerance on chromosome 4 (Buu et al 2014) in BC 4 F 1 population of OM5930/N22//4*OM5930 indicated that twelve plants homozygous alleles like N22 ( Supplementary Fig. 1); similarly 15 plants in BC 4 F 1 of Gayabeyo/N22//4* Gayabyeo were homozygous alleles like N22 ( Supplementary Fig.…”

Section: Marker-assisted Selection On Chromosomementioning

confidence: 99%

“…Two markers RM3586 and RM160 linked to QTLs for heat tolerance on chromosome 3 (Buu et al 2014) were screened to select plants possessing QTLs. The PCR products at locus RM3586 on chromosome 3 in BC 4 F 1 of Table 2.…”

Section: Marker-assisted Selection On Chromosomementioning

confidence: 99%

“…Two QTL loci related to heat tolerance were selected using RM3586 and RM160 on chromosome 3, and RM3735, RM3471 and RM3687 on chromosome 4 (Buu et al 2014). These markers were used to select plants possessing QTL in every backcross (Fig.…”

Section: Marker-assisted Selection To Qtlsmentioning

confidence: 99%

“…A single QTL at the locus RM5749 on chromosome 4 was identified explaining 10.8% of the total phenotypic variance of grain yield. Attentions have been paid to the interval of RM3586-RM160 at the range of 8.1 cM on chromosome 3 for heat tolerance score (Buu et al 2014). The subsequent backcross populations derived from the cross of OM5930/N22 have been continued to select via conventional procedures and MAS based on the selected markers.…”

Section: Introductionmentioning

confidence: 99%

“…The heat tolerance rice breeding has been continued through the collaborative research project between NICS, RDA (Korea) and CLRRI, IAS (Vietnam); we conducted the breeding program assisted by molecular markers, which were previously identified in QTL mapping and analysis (Buu et al 2013(Buu et al , 2014. The study aims to select new promising lines adaptable to heat stress in the central coast of Southern Vietnam from the crosses with heat tolerance germplasm N22 and Dular based on markerassisted selection using SSR markers.…”

Section: Introductionmentioning

confidence: 99%

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Breeding for Heat Tolerance Rice Based on Marker-Assisted Backcrosing in Vietnam

Lang¹,

Ha²,

Tru³

et al. 2015

Plant Breed. Biotech.

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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.Plant Breed. Biotech. 2015 (September) ABSTRACT A total of six markers RM3586 and RM160 on chromosome 3 and RM3735, RM3471, RM3687 and RM3536 on chromosome 4 were used to select promising lines in backcrossing populations for heat tolerance at flowering stage in rice. Fifty lines selected in BC3F2, BC4F1, and BC4F2 and parents were planted in 2013, and 2014 dry seasons at the CLRRI field under natural heat stress and greenhouse to evaluate heat tolerance at the reproductive period. Heat tolerance scoring under field condition was based on percentage of unfilled grains. All selected lines exhibited their homozygous alleles with two heat tolerance germplasm N22 or Dular in QTL loci. Twelve lines harboring homozygous alleles to QTL loci RM3586 on chromosome 3 and RM3735 on chromosome 4, respectively were selected and evaluated to agronomic traits and yield potential. Four lines BC4-1-10-1 from OM5930/N22//4 *OM5930, BC4-5-8 from OM5930/Dular//4*OM5930, BC4-5-9-4 from AS996/N22//4*AS996, and BC4-6-3 from AS996/Dular//4 *AS996, respectively were finally selected to would be for regional adaptable test in Central Coast of Vietnam under heat stress condition to release to rice farmers.

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Section: Marker-assisted Selection On Chromosomementioning

confidence: 99%

Section: Marker-assisted Selection On Chromosomementioning

confidence: 99%

Section: Marker-assisted Selection To Qtlsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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