Establishment of adaptability to the northern-limit of rice production

Fujino, Kenji; Obara, Masato; Ikegaya, Tomohito

doi:10.1007/s00438-019-01542-2

Cited by 30 publications

(72 citation statements)

References 60 publications

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“…A single gene for DTH, Hd1may function in these traits. Functional Hd1 exhibits earlier DTH with short CL, greater PN, and short PL (Fujino et al 2019a). Functional Hd1 (allelic to Lm), versus a loss-offunction hd1, may contribute to the southern-northern distribution among Japanese rice varieties Kikuchi 1977, Yokoo et al 1980).…”

Section: Breeding-syndrome Traitsmentioning

confidence: 99%

“…A farmer named Kyuzo Nakayama chose a rice variety named Akage for rice cultivation in 1873, which has an extremely early heading date due to its ghd7osprr37 genotype (Fig. 2B, 2D) (Fujino et al 2019a). In addition, he facilitated seedling growth using warmed water during the low temperature period in spring.…”

Section: History Of Rice Cultivation In Hokkaidomentioning

confidence: 99%

“…Functional Hd1 (allelic to Lm), versus a loss-offunction hd1, may contribute to the southern-northern distribution among Japanese rice varieties Kikuchi 1977, Yokoo et al 1980). Of note, functional Hd1 was transferred into the gene pool of rice breeding programs in Hokkaido (Fujino et al 2019a). This could shape the fitness as adaptability to agriculture, leading to significant rice production in Japan.…”

Section: Breeding-syndrome Traitsmentioning

confidence: 99%

“…Early heading in DTH is essential for adaptability to conditions in Hokkaido (Fujino et al 2019a), and it controls yield-related traits. In particular, a negative correlation between DTH and PN is favored for rice cultivation in Hokkaido (Fujino et al 2019a). These yield-related traits are also associated with various morphological components, including panicle architecture.…”

Section: Premium Traitsmentioning

confidence: 99%

“…These yield-related traits are also associated with various morphological components, including panicle architecture. Earlier DTH caused by Heading date 1 (Hd1) (Yano et al 2000) is associated with greater PN and short panicle length (PL) (Fujino et al 2019a). These yield-related traits exhibited a balance between them with a strong impact on not only yield but also seed quality.…”

Section: Premium Traitsmentioning

confidence: 99%

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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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Section: Breeding-syndrome Traitsmentioning

confidence: 99%

Section: History Of Rice Cultivation In Hokkaidomentioning

confidence: 99%

Section: Breeding-syndrome Traitsmentioning

confidence: 99%

Section: Premium Traitsmentioning

confidence: 99%

Section: Premium Traitsmentioning

confidence: 99%

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