Results 21 to 30 of about 2,333 (208)

Genetic diversity of wild rice accessions (Oryza rufipogon Griff.) in Guangdong and Hainan Provinces, China, and construction of a wild rice core collection

open access: yesFrontiers in Plant Science, 2022
Oryza rufipogon Griff. is a valuable germplasm resource for rice genetic improvement. However, natural habitat loss has led to the erosion of the genetic diversity of wild rice populations. Genetic diversity analysis of O.
Jing Zhang   +10 more
doaj   +1 more source

Genome-Wide Analysis of CCT Transcript Factors to Identify Genes Contributing to Photoperiodic Flowering in Oryza rufipogon

open access: yesFrontiers in Plant Science, 2021
Photoperiod sensitivity is a dominant determinant for the phase transition in cereal crops. CCT (CONSTANS, CO-like, and TOC1) transcription factors (TFs) are involved in many physiological functions including the regulation of the photoperiodic flowering.
Xin Peng   +11 more
doaj   +1 more source

Comparative ultrastructure of caryopsis and leaf surface anatomy in wild rice Oryza coarctata and O. rufipogon through Scanning Electron Microscope (SEM) [PDF]

open access: yes, 2021
The wild rice Oryza coarctata (Roxb.) is an herbaceous halophytic plant belongs to the grass family poaceae prevalent to the coastal regions of Southern Asia. The O.
Subhas Chandra Roy   +3 more
core   +1 more source

Molecular and Morphological Divergence of Australian Wild Rice

open access: yesPlants, 2020
Two types of perennial wild rice, Australian Oryza rufipogon and a new taxon Jpn2 have been observed in Australia in addition to the annual species Oryza meridionalis. Jpn2 is distinct owing to its larger spikelet size but shares O.
Dinh Thi Lam   +3 more
doaj   +1 more source

Phenotypic Variation and the Impact of Admixture in the Oryza rufipogon Species Complex (ORSC)

open access: yesFrontiers in Plant Science, 2022
Crop wild relatives represent valuable reservoirs of variation for breeding, but their populations are threatened in natural habitats, are sparsely represented in genebanks, and most are poorly characterized.
Georgia C. Eizenga   +12 more
doaj   +1 more source

Genotypic Variation in Spatial Distribution of Fe in Rice Grains in Relation to Phytic Acid Content and Ferritin Gene Expression

open access: yesRice Science, 2020
Rice varieties having high Fe concentration in the endospermic region can be used as a good source for Fe deficit population. In this study, 303 Oryza sativa varieties and 1 Oryza rufipogon accession were assessed for spatial Fe accumulation in grains by
Anurag Mishra   +5 more
doaj   +1 more source

OryzaGenome2.1: Database of Diverse Genotypes in Wild Oryza Species

open access: yesRice, 2021
Background OryzaGenome ( http://viewer.shigen.info/oryzagenome21detail/index.xhtml ), a feature within Oryzabase ( https://shigen.nig.ac.jp/rice/oryzabase/ ), is a genomic database for wild Oryza species that provides comparative and evolutionary ...
Hiromi Kajiya-Kanegae   +19 more
doaj   +1 more source

QTL Mapping of Mineral Element Contents in Rice Using Introgression Lines Derived from an Interspecific Cross

open access: yesAgronomy, 2022
Developing rice varieties with increased mineral element content is the most cost-effective and efficient approach for alleviating human malnutrition and nutrient deficiencies. In this study, quantitative trait loci (QTLs) were mapped for mineral element
Cheryl Adeva   +7 more
doaj   +1 more source

Through the genetic bottleneck: O. rufipogon as a source of trait-enhancing alleles for O. sativa

open access: yesEuphytica, 2006
This paper summarizes results from a decade of collaborative research using advanced backcross (AB) populations to a) identify quantitative trait loci (QTL) associated with improved performance in rice and to b) clone genes underlying key QTLs of interest. We demonstrate that AB-QTL analysis is capable of (1) successfully uncovering positive alleles in
Susan R. McCouch   +16 more
openaire   +2 more sources

Fitness Estimation through Performance Comparison of F1 Hybrids with their Parental Species Oryza rufipogon and O. sativa [PDF]

open access: yesAnnals of Botany, 2004
Introgression of crop genes into populations of wild relatives has important implications for germplasm conservation as well as for the persistence of novel transgenes in wild populations. Studies of hybrid fitness can be used to evaluate the potential for introgression to occur following episodes of interspecific hybridization.This study estimated ...
Zhi Ping, Song   +3 more
openaire   +2 more sources

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