A high proportion of beta-tocopherol in vitamin E is associated with poor seed longevity in rice produced under temperate conditions

Autor:	N. Ruaraidh Sackville Hamilton, Dmytro Chebotarov, Fiona R. Hay, Jieun Kwak, Jeom-Sig Lee, Jae-Sung Lee, Mi-Ra Yoon, Jun-Hyeon Cho
Rok vydání:	2019
Předmět:	biology media_common.quotation_subject Vitamin E medicine.medical_treatment Haplotype Longevity Plant Science biology.organism_classification Japonica Horticulture Polymorphism (computer science) Genetics medicine Temperate climate Allele Agronomy and Crop Science beta-Tocopherol media_common
Zdroj:	Plant Genetic Resources: Characterization and Utilization. 17:375-378
ISSN:	1479-263X 1479-2621
DOI:	10.1017/s147926211900008x
Popis:	Seeds of 15 diverse rice accessions, representing aus, indica, temperate japonica and tropical japonica subpopulations, were produced under temperate climate conditions in Korea and used for vitamin E analysis and seed storage experiments at 45°C and 10.9% seed moisture content. High γ-tocotrienol was significantly positively correlated with seed longevity. In addition, a high β-tocopherol proportion relative to δ-tocopherol was significantly negatively correlated with seed longevity. Using high-density single-nucleotide polymorphism marker data, DNA haplotype analysis showed clear allelic variations in the region of two S-adenosylmethionine synthetase genes: LOC_Os04g42095 and LOC_Os11g15410, which regulate the conversion of δ-tocopherol into β-tocopherol. Four indica accessions with rare and subpopulation-specific alleles showed a 2.3-fold lower β-/δ-tocopherol ratio compared with accessions from other subpopulations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::12fc55815ef26a11579778ab0f721e92 https://doi.org/10.1017/s147926211900008x Zobrazit plný text záznamu