Abstract Background Wild rice, including Oryza nivara and rufipogon , which are considered as the ancestors of Asian cultivated rice ( sativa ), possess high genetic diversity serve a crucial resource for breeding novel cultivars rice. Although domestication related traits, such seed shattering plant architecture, have been intensively studied at phenotypic genomic levels, further investigation...

Although iodine is not an essential nutrient for higher plants, their roots take up and transport the element. However, the exact mechanisms involved in iodine uptake and metabolism in higher plants have yet to be elucidated. In this study, we compared two cultivars differing in iodine tolerance ("Nipponbare" and "Gohyakumangoku") to increasing levels of I(-) and IO(-) 3 in the root solutions o...

We identified a gene responsible for tolerance to boron (B) toxicity in rice (Oryza sativa), named BORON EXCESS TOLERANT1. Using recombinant inbred lines derived from the B-toxicity-sensitive indica-ecotype cultivar IR36 and the tolerant japonica-ecotype cultivar Nekken 1, the region responsible for tolerance to B toxicity was narrowed to 49 kb on chromosome 4. Eight genes are annotated in this...

A highly contiguous mitochondrial and plastid genome sequences of a japonica rice cultivar, Taichung 65, were determined by hybrid approach with long- short-read sequences. The assembled was 465,453 bases in length an overall GC content 43.8%. It predicted to harbor 62 protein-encoding genes, 16 kinds (33 copies) transfer RNA, three (six ribosomal RNA genes. structure 65 is largely the same as ...

Cold stress is the main factor limiting rice production and distribution. Chaling wild can survive in cold winters. AP2/EREBP a known transcription family associated with abiotic stress. We identified members of rice, maize, Arabidopsis, conducted collinearity analysis gene analysis. used Affymetrix array technology to analyze expression genes cultivated cultivar Pei’ai64S, which sensitive cold...

Elucidation of the rice genome is expected to broaden our understanding of genes related to the agronomic characteristics and the genetic relationship among cultivars. In this study, we conducted whole-genome sequencings of 6 cultivars, including 5 temperate japonica cultivars and 1 tropical japonica cultivar (Moroberekan), by using next-generation sequencing (NGS) with Nipponbare genome as a r...

Rice (Oryza sativa L.) will be the first major crop, as well as the first monocot plant species, to be completely sequenced. Integration of DNA sequence-based maps with cytological maps will be essential to fully characterize the rice genome. We have isolated a set of 24 chromosomal arm-specific bacterial artificial chromosomes to facilitate rice chromosome identification. A standardized rice k...

Heading date is one of the most important traits in rice breeding. It is governed by multiple genes, including known quantitative trait loci (QTLs). In general, almost all japonica cultivars, including Nipponbare, head early under short-day (SD) conditions, but some indica cultivars, including Kasalath, head late. To explain this difference, we identified QTLs controlling heading date under SD ...

A small family of plant proteins, designated PSEUDO RESPONSE REGULATORS (PRRs), is crucial for a better understanding of the molecular link between circadian rhythm and photoperiodic control of flowering time in the dicotyledonous model plant Arabidopsis thaliana. Recently, we showed that the monocotyledonous model plant Oryza sativa also has homologous members of the OsPRR family (Oryza sativa...

High aluminum (Al) tolerance of rice (Oryza sativa) is controlled by multiple tolerance genes, but the regulatory mechanisms underlying the differential expression of these genes are poorly understood. Here, we investigated the factors regulating the expression of OsFRDL4, a gene encoding a citrate efflux transporter involved in Al-induced citrate secretion from the roots. Analysis with chromos...