Identification and verification of grain shape QTLs by SNP array in rice.
Grain shape strongly influences the economic value and grain yield of rice. Thus, identifying quantitative trait loci (QTLs) for grain shape has been a longstanding goal in rice genetic research and breeding programs. Single nucleotide polymorphism (SNP) markers are ubiquitous in the rice genome and...
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2021
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oai:doaj.org-article:1df872b376214967944393859a6b5d1a2021-12-02T20:16:18ZIdentification and verification of grain shape QTLs by SNP array in rice.1932-620310.1371/journal.pone.0260133https://doaj.org/article/1df872b376214967944393859a6b5d1a2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0260133https://doaj.org/toc/1932-6203Grain shape strongly influences the economic value and grain yield of rice. Thus, identifying quantitative trait loci (QTLs) for grain shape has been a longstanding goal in rice genetic research and breeding programs. Single nucleotide polymorphism (SNP) markers are ubiquitous in the rice genome and are more abundant and evenly distributed on the 12 rice chromosomes than traditional markers. An F2 population was genotyped using the RICE6K SNP array to elucidate the mechanisms governing grain shape. Thirty-five QTLs for grain shape were detected on 11 of 12 chromosomes over 2 years. The major QTL cluster qGS7 was detected in both years and displayed strong genetic effects on grain length and width, showing consistency with GL7/GW7. Some minor QTLs were also detected, and the effects of four QTLs on seed size were then validated using BC1F6 populations with residual heterozygous lines in each QTL region. Our findings provide insights into the molecular basis of grain shape as well as additional resources and approaches for producing hybrid high-yield rice varieties.Junxiao ChenKai LiuWenjun ZhaLei ZhouMing LiHuashan XuPeide LiZhijun ChenGuocai YangPingli ChenSanhe LiAiqing YouPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 11, p e0260133 (2021) |
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Medicine R Science Q |
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Medicine R Science Q Junxiao Chen Kai Liu Wenjun Zha Lei Zhou Ming Li Huashan Xu Peide Li Zhijun Chen Guocai Yang Pingli Chen Sanhe Li Aiqing You Identification and verification of grain shape QTLs by SNP array in rice. |
| description |
Grain shape strongly influences the economic value and grain yield of rice. Thus, identifying quantitative trait loci (QTLs) for grain shape has been a longstanding goal in rice genetic research and breeding programs. Single nucleotide polymorphism (SNP) markers are ubiquitous in the rice genome and are more abundant and evenly distributed on the 12 rice chromosomes than traditional markers. An F2 population was genotyped using the RICE6K SNP array to elucidate the mechanisms governing grain shape. Thirty-five QTLs for grain shape were detected on 11 of 12 chromosomes over 2 years. The major QTL cluster qGS7 was detected in both years and displayed strong genetic effects on grain length and width, showing consistency with GL7/GW7. Some minor QTLs were also detected, and the effects of four QTLs on seed size were then validated using BC1F6 populations with residual heterozygous lines in each QTL region. Our findings provide insights into the molecular basis of grain shape as well as additional resources and approaches for producing hybrid high-yield rice varieties. |
| format |
article |
| author |
Junxiao Chen Kai Liu Wenjun Zha Lei Zhou Ming Li Huashan Xu Peide Li Zhijun Chen Guocai Yang Pingli Chen Sanhe Li Aiqing You |
| author_facet |
Junxiao Chen Kai Liu Wenjun Zha Lei Zhou Ming Li Huashan Xu Peide Li Zhijun Chen Guocai Yang Pingli Chen Sanhe Li Aiqing You |
| author_sort |
Junxiao Chen |
| title |
Identification and verification of grain shape QTLs by SNP array in rice. |
| title_short |
Identification and verification of grain shape QTLs by SNP array in rice. |
| title_full |
Identification and verification of grain shape QTLs by SNP array in rice. |
| title_fullStr |
Identification and verification of grain shape QTLs by SNP array in rice. |
| title_full_unstemmed |
Identification and verification of grain shape QTLs by SNP array in rice. |
| title_sort |
identification and verification of grain shape qtls by snp array in rice. |
| publisher |
Public Library of Science (PLoS) |
| publishDate |
2021 |
| url |
https://doaj.org/article/1df872b376214967944393859a6b5d1a |
| work_keys_str_mv |
AT junxiaochen identificationandverificationofgrainshapeqtlsbysnparrayinrice AT kailiu identificationandverificationofgrainshapeqtlsbysnparrayinrice AT wenjunzha identificationandverificationofgrainshapeqtlsbysnparrayinrice AT leizhou identificationandverificationofgrainshapeqtlsbysnparrayinrice AT mingli identificationandverificationofgrainshapeqtlsbysnparrayinrice AT huashanxu identificationandverificationofgrainshapeqtlsbysnparrayinrice AT peideli identificationandverificationofgrainshapeqtlsbysnparrayinrice AT zhijunchen identificationandverificationofgrainshapeqtlsbysnparrayinrice AT guocaiyang identificationandverificationofgrainshapeqtlsbysnparrayinrice AT pinglichen identificationandverificationofgrainshapeqtlsbysnparrayinrice AT sanheli identificationandverificationofgrainshapeqtlsbysnparrayinrice AT aiqingyou identificationandverificationofgrainshapeqtlsbysnparrayinrice |
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