Introgression of the chromosomal region with the Pi-cd locus from Oryza meridionalis into O. sativa L. during rice domestication

Fujino, Kenji; Hirayama, Yuji; Obara, Masato; Ikegaya, Tomohito

doi:10.1007/s00122-019-03332-1

Cited by 13 publications

(12 citation statements)

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“…japonica , derived from rice‐breeding programmes in Hokkaido, Japan, were used in the evaluation of blast resistance and genotype for the Pi‐cd region. These varieties have unique heading date behaviour with adaptations to growth in Hokkaido (Fujino, Hirayama, & Kaji, 2019; Fujino, Hirayama, Obara, et al, 2019; Fujino, Obara, et al, 2019). Eight rice varieties were used for the field evaluation of blast resistance over three years, 2013, 2014 and 2015.…”

Section: Methodsmentioning

confidence: 99%

“…According to the pedigree of the varieties, Pi‐cd was transferred into the local population from the rice variety 'Cody' from America via the variety 'Kitaake', which was registered in 1984 (Shinada et al., 2015). Furthermore, characterization of the genome sequence around the Pi‐cd locus demonstrated that Pi‐cd may have originated from Oryza meridionalis (Fujino, Hirayama, Obara, & Ikegaya, 2019). The rice variety 'Kitakurin' was registered in 2014 and exhibits good eating quality and strong resistance to rice blast.…”

Section: Introductionmentioning

confidence: 99%

“…The rice variety 'Kitakurin' was registered in 2014 and exhibits good eating quality and strong resistance to rice blast. Pi‐cd in 'Kitakurin' plays a major role in its blast resistance (Fujino, Hirayama, Obara, et al, 2019; Shinada et al., 2015). Pi‐cd is only one of the exploited blast resistance genes and has been used for blast resistance in rice‐breeding programmes in Hokkaido (Shinada et al., 2015).…”

Section: Introductionmentioning

confidence: 99%

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Role of the rice blast resistance gene Pi‐cd in rice (Oryza sativa) breeding programmes

et al. 2020

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A series of DNA markers for various agronomic traits may accelerate the success of marker‐assisted selection in practical plant breeding programmes. Here, we developed DNA markers for the blast resistance gene Pi‐cd. In this study, we examined the effects of the Pi‐cd locus on not only blast resistance but also agronomic traits in agriculture. We developed three pyramiding lines (PLs) coupling Pi‐cd with three blast resistance genes, pi21, Pi35 and Pi39. The effect of Pi‐cd on blast resistance was dependent on the coupled resistance genes. Then, we evaluated the effects of Pi‐cd on 13 agronomic traits. Amylose content and 1,000‐grain weight showed significant differences between the PLs and current commercial varieties, which had no negative effects on agronomic trait values. Furthermore, we investigated the distribution of genotype for the Pi‐cd locus among varieties of upland rice. The KT genotype specific to rice blast resistance may be predominant in the varieties. The results suggested that Pi‐cd has the potential to be useful for improving blast resistance in rice breeding programmes.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Role of the rice blast resistance gene Pi‐cd in rice (Oryza sativa) breeding programmes

et al. 2020

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“…3F), although it may be derived from a rice variety Cody from USA (Shinada et al 2015b). The Pi-cd locus is distributed specifically in tropical japonica (upland) rice varieties over the world and might be introgressed from wild relative O. meridionalis (Fujino et al 2019c). Pi-cd is only one blast resistance gene, which has been used in rice breeding programs in Hokkaido.…”

Section: Premium Traitsmentioning

confidence: 99%

“…The rice variety Kitakurin was registered in 2014 and exhibits good eating quality and vigorous resistance to rice blast (http://www.pref.hokkaido.lg.jp/ns/nsk/kome/index3.htm). Pi-cd plays a major role in blast resistance in Kitakurin (Fujino et al 2019c, Shinada et al 2015b.…”

Section: Premium Traitsmentioning

confidence: 99%

Marker-assisted selection in rice breeding programs in Hokkaido

2019

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Rice breeding programs in Hokkaido over the past 100 years have dramatically increased productivity and improved the eating quality of rice. Commercial varieties with high yield and good eating quality, such as Kirara 397, Hoshinoyume, and Nanatsuboshi, have been continuously registered since 1990. Furthermore, varieties with better eating quality using Wx1-1, which reduces amylose content to improve the taste of sticky rice, such as Oborozuki and Yumepirika, were registered in 2006 and 2008, respectively. However, to the best of our knowledge the genomic changes associated with these improvements have not been determined. Better understanding of the relationships between DNA sequences and agricultural traits could facilitate rice breeding programs in Hokkaido. Marker-assisted selection (MAS), which can select the plants with chromosomal regions tagged with DNA markers for desirable traits, is an advanced technology to manage genetic improvements. Here, we summarize the current states of MAS in rice breeding programs in Hokkaido before huge data sets of genome sequences using next-generation sequencing technology come into practical use in rice breeding programs.

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Advances in Genetics and Breeding of Rice: An Overview

Siddiq

Vemireddy

2021

Rice Improvement

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Rice (Oryza sativa L.) is life for more than half of the human population on Earth. In the history of rice breeding, two major yield breakthroughs or leaps occurred, which phenomenally revolutionized rice breeding: the Green Revolution in the 1960s and hybrid technology in the 1970s. However, the fruits of these technologies have not spread globally to all rice-growing areas, especially African countries, for diverse reasons. It is estimated that at least 50% more rice yield is needed to feed the anticipated nine billion people by 2050. This clearly warrants another breakthrough in rice. It is apparent that the currently used conventional and molecular marker-assisted methods need to be updated with multi-pronged approaches involving innovative cutting-edge technologies for achieving the next breakthrough in rice. Here, we attempt to discuss the exciting avenues for the next advances in rice breeding by exploiting cutting-edge technologies.

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Introgression of the chromosomal region with the Pi-cd locus from Oryza meridionalis into O. sativa L. during rice domestication

Cited by 13 publications

References 65 publications

Role of the rice blast resistance gene Pi‐cd in rice (Oryza sativa) breeding programmes

Role of the rice blast resistance gene Pi‐cd in rice (Oryza sativa) breeding programmes

Marker-assisted selection in rice breeding programs in Hokkaido

Advances in Genetics and Breeding of Rice: An Overview

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