Quantitative trait loci mapping of panicle traits in rice

In this study 90 individuals of recombinant inbred lines (RILs) were developed by crossing subspecies of japonica rice cultivar, ‘Nagdong’ and an indica type cultivar, ‘Cheongcheong’. These individuals were used to identify the quantitative trait loci of panicle traits using SSR markers. A genetic l...

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Detalles Bibliográficos
Autores principales: Jia, Baoyan, Zhao, Xinhua, Qin, Yang, Irfan, Muhammad, Kim, Tae-heon, Wang, Bolun, Wang, Shu, Keun Sohn, Jae
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Shiraz University 2019
Materias:
Original Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6510211/
https://www.ncbi.nlm.nih.gov/pubmed/31528639
http://dx.doi.org/10.22099/mbrc.2019.31550.1366
Descripción
Sumario:In this study 90 individuals of recombinant inbred lines (RILs) were developed by crossing subspecies of japonica rice cultivar, ‘Nagdong’ and an indica type cultivar, ‘Cheongcheong’. These individuals were used to identify the quantitative trait loci of panicle traits using SSR markers. A genetic linkage map was constructed using one hundred fifty four simple sequence repeat (SSR) primers covering distance of 1973.6 cM of the whole genome with mean distance of 13.9 cM among markers. QTLs were mapped using composite interval mapping method, nineteen QTLs were recognized for the panicle traits on chromosomes 4, 5, 6, 8, 10, 11, 12 with individual QTL explained 8.8% to 37.9% of phenotypic variation. Two pleiotropic effects loci were found on chromosomes 4 and 6. These QTLs affecting leaf traits, panicle traits and panicle branch traits would be beneficial to high-yield rice improvement.

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