Results 71 to 80 of about 16,430 (208)

Forward genetic screening of mutants of the wild diploid ancestor Nicotiana sylvestris identifies aspartate oxidase 2 as a key gene for nicotine biosynthesis in cultivated allotetraploid tobacco (Nicotiana tabacum)

open access: yesThe Plant Journal, Volume 126, Issue 1, April 2026.
SUMMARY Tobacco (Nicotiana tabacum) is one of the most important commercial crops. It is an allotetraploid with two subgenomes derived from two wild diploid species: the maternal ancestor Nicotiana sylvestris and the paternal ancestor Nicotiana tomentosiformis.
Takanori Takeuchi   +7 more
wiley   +1 more source

Cytogenetic features of intergeneric amphydiploids and genome-substituted forms of wheat

open access: yesВавиловский журнал генетики и селекции
Synthetic intergeneric amphydiploids and genome-substituted wheat forms are an important source for transferring agronomically valuable genes from wild species into the common wheat (Triticum aestivum L.) genome.
E. D. Badaeva   +5 more
doaj   +1 more source

Genetic transfer of resistance to powdery mildew and of an associated molecular marker from Aegilops ventricosa to hexaploid wheat. [PDF]

open access: yes, 1987
Resistance to powdery mildew, caused by the fungus Erysiphe graminis f.sp. tritici, has been transferred from Aegilops ventricosa (genomes DvMv) to hexaploid wheat (Triticum aestivum, ABD).
A Delibes   +12 more
core   +2 more sources

Identification of chromosome‐specific simple sequence repeat markers to characterize the Langdon durum D‐genome disomic substitution lines

open access: yesCrop Science, Volume 66, Issue 2, March/April 2026.
Abstract Genetic studies of durum wheat (Triticum turgidum L. ssp. durum [Desf.] Husnot.) provide valuable information for crop improvement. In the 1980s, D‐genome disomic chromosome substitution (DS) lines were developed, which involved the substitution of a pair of D‐genome chromosomes from hexaploid wheat (T.
Heaven S. James   +3 more
wiley   +1 more source

Gametocidal genes of Aegilops: segregation distorters in wheat–Aegilops wide hybridization [PDF]

open access: yesGenome, 2017
Aegilops is a genus belonging to the family Poaceace, which have played an indispensible role in the evolution of bread wheat and continues to do so by transferring genes by wide hybridization. Being the secondary gene pool of wheat, gene transfer from Aegilops poses difficulties and segregation distortion is common.
openaire   +2 more sources

Silicon Nanoparticles Enhance Cold Tolerance in Elymus nutans Seedlings by Regulating Growth, Physiology, and Gene Expression Under Cold Stress

open access: yesFood and Energy Security, Volume 15, Issue 2, March/April 2026.
ABSTRACT Cold stress represents one of the primary abiotic stresses affecting forage growth, development, yield, and quality. As a novel agricultural nanomaterial, silicon nanoparticles (SiNPs) demonstrate unique potential in regulating plant stress responses. However, their mechanism of action in forage cold responses remains poorly understood.
Yancui Zhao   +6 more
wiley   +1 more source

Cupule aud acorn basic morpbological differences between Quercus ithaburensis Decne. subsp. ithaburensis and Quercus ithaburensis subsp. macrolepis (Kotschy) Hedge & Yalt [PDF]

open access: yes, 2002
Estructura del glande y de la cúpula de Quercus ithaburensis Decne. subsp. ithaburensis y de Quercus ithaburensis subsp. inacrolepis (Kotschy) Hedge & Yalt.: Diferencias esenciales.Key words. Quercus ithaburensis, taxonomy, morphology, acorn, cupule,
Dufour-Dror, Jean-Marc, Ertas, Aytekin
core   +3 more sources

Notes on Aegilops (Poaceae) [PDF]

open access: yesWilldenowia, 2007
Abstract Scholz, H.: Notes on Aegilops (Poaceae). — Willdenowia 37: 431–434. — ISSN 0511-9618; © 2007 BGBM Berlin-Dahlem. doi:10.3372/wi.37.37204 (available via http://dx.doi.org/) A variant (mutant) of Aegilops biuncialis with non-shedding spikes, var. tenacissima, is described as new to science and its origin from the diaspore of var.
openaire   +1 more source

Diploid genome differentiation conferred by RNA sequencing-based survey of genome-wide polymorphisms throughout homoeologous loci in Triticum and Aegilops

open access: yesBMC Genomics, 2020
Background Triticum and Aegilops diploid species have morphological and genetic diversity and are crucial genetic resources for wheat breeding. According to the chromosomal pairing-affinity of these species, their genome nomenclatures have been defined ...
Sayaka Tanaka   +3 more
doaj   +1 more source

Homoeologous chromosomal location of the genes encoding thionins in wheat and rye [PDF]

open access: yes, 1979
Thionins are high sulphur basic polypeptides present in the endosperm of Gramineae. In wheat there are three thionins encoded by genes located in the long arms of chromosomes 1A, 1B and 1D. Rye has one thionin encoded by a gene which has been assigned to
A.K. Balls   +19 more
core   +2 more sources

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