Results 31 to 40 of about 2,373 (206)

Comparative genomic analysis of 5Mg chromosome of Aegilops geniculata and 5Uu chromosome of Aegilops umbellulata reveal genic diversity in the tertiary gene pool

open access: yesFrontiers in Plant Science, 2023
Wheat is one of the most important cereal crops for the global food security. Due to its narrow genetic base, modern bread wheat cultivars face challenges from increasing abiotic and biotic stresses.
Inderjit S. Yadav   +9 more
doaj   +1 more source

Introgression of the Aegilops speltoides Su1-Ph1 Suppressor into Wheat

open access: yesFrontiers in Plant Science, 2017
Meiotic pairing between homoeologous chromosomes in polyploid wheat is inhibited by the Ph1 locus on the long arm of chromosome 5 in the B genome.
Hao Li   +5 more
doaj   +1 more source

Development of Deletion Lines for Chromosome 3D of Bread Wheat

open access: yesFrontiers in Plant Science, 2020
The identification of genes of agronomic interest in bread wheat (Triticum aestivum L.) is hampered by its allopolyploid nature (2n = 6x = 42; AABBDD) and its very large genome, which is largely covered by transposable elements.
Radim Svačina   +7 more
doaj   +1 more source

Homoeologous Chromosome Pairing and Alien Introgression in Backcrossing Progenies Derived from Hybrids Solanum tuberosum (+) Mexican 2x (1 EBN) B-Genome Potato Species

open access: yesAgronomy, 2023
We applied a genomic in situ hybridization (GISH) to analyze the genomic constitution of and meiotic pairing in interspecific somatic hybrids, and in a wide subset of backcrossing derivatives (BC1–BC5), from three interspecific combinations involving the
Tatjana Gavrilenko   +4 more
doaj   +1 more source

A comparative analysis of chromosome pairing at metaphase I in interspecific hybrids between durum wheat (Triticum turgidum L.) and the most widespread Aegilops species. [PDF]

open access: yes, 2010
Homoeologous metaphase I (MI) associations in hybrids between durum wheat and its wild allotetraploid relatives Aegilops neglecta, Ae. triuncialis and Ae.
Benavente Barzana, M. Elena   +2 more
core   +2 more sources

Homoeologous Chromosomes From Two Hordeum Species Can Recognize and Associate During Meiosis in Wheat in the Presence of the Ph1 Locus

open access: yesFrontiers in Plant Science, 2018
Understanding the system of a basic eukaryotic cellular mechanism like meiosis is of fundamental importance in plant biology. Moreover, it is also of great strategic interest in plant breeding since unzipping the mechanism of chromosome specificity ...
María C. Calderón   +3 more
doaj   +1 more source

Homoeologs: What Are They and How Do We Infer Them? [PDF]

open access: yes, 2016
The evolutionary history of nearly all flowering plants includes a polyploidization event. Homologous genes resulting from allopolyploidy are commonly referred to as 'homoeologs', although this term has not always been used precisely or consistently in ...
Dessimoz, C., Glover, N.M., Redestig, H.
core   +3 more sources

Assessing the Potential of Using the Langdon 5D(5B) Substitution Line for the Introgression of Aegilops tauschii Into Durum Wheat

open access: yesFrontiers in Plant Science, 2022
Aegilops tauschii, the D-genome donor of hexaploid wheat, provides a source of genetic variation that could be used for tetraploid (durum) wheat improvement.
Manel Othmeni   +5 more
doaj   +1 more source

A Duplicated Copy of the Meiotic Gene ZIP4 Preserves up to 50% Pollen Viability and Grain Number in Polyploid Wheat

open access: yesBiology, 2021
Although most flowering plants are polyploid, little is known of how the meiotic process evolves after polyploidisation to stabilise and preserve fertility.
Abdul Kader Alabdullah   +2 more
doaj   +1 more source

Reducing the size of an alien segment carrying leaf rust and stripe rust resistance in wheat

open access: yesBMC Plant Biology, 2020
Background Leaf and stripe rusts are two major wheat diseases, causing significant yield losses. The preferred way for protecting wheat from rust pathogens is by introgression of rust resistance traits from wheat-related wild species.
Sofia Khazan   +6 more
doaj   +1 more source

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