Chromosome Engineering in Plants: Genetics, Breeding, Evolution

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Molecular Biology".

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 2398

Special Issue Editor


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Guest Editor
Department of Genetics and Plant Breeding, Poznań University of Life Sciences, Biocentrum Building, Dojazd 11 str., 60-631 Poznan, Poland
Interests: incorporating genetic diversity for crop plants improvement; introduction of agrobiodiversity into cropping systems; better understanding of structure, function and evolution of crop plant genomes; application of plant biotechnology methods for plant breeding purposes
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Special Issue Information

Dear Colleagues,

Chromosome engineering in plants aims at the introduction of chromatin fragments with a desirable genes or loci, or changes in chromosome structure that increase plants’ end value. It is layered on a constant background of conventional plant breeding. It is an alternative technology to the gene-editing tool box, which is growing in importance as global climate change raises new challenges for agriculture. This special issue presents the current state of knowledge and directions of future prebreeding studies of plant chromosome manipulations. It covers the recent findings concerning chromosome manipulations and induced aberrations for plant breeding purposes. We are welcome all review articles, regular research articles, communications, and short notes in the field connected with creation of new chromosome constructs, chromosome segments introgressions from wild relatives, B-chromosomes or mini—chromosomes analysis etc. This issue describes the available techniques of chromosome manipulation including chromosome fragmentation, fusion of fragments into chromosome structures, induced recombination, etc and methods for their analysis and visualization.

Dr. Michał Kwiatek
Guest Editor

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Keywords

  • B-chromosomes, breeding
  • chromosome additions
  • chromosome engineering chromosome substitutions
  • chromosome translocations
  • chromosome deletions
  • compensation/non-compensation translocation reciprocal translocations

Published Papers (1 paper)

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Research

18 pages, 5225 KiB  
Article
Novel Tetraploid Triticale (Einkorn Wheat × Rye)—A Source of Stem Rust Resistance
by Michał T. Kwiatek, Aleksandra Noweiska, Roksana Bobrowska, Adrianna Czapiewska, Mert Aygün, Francois d’Assise Munyamahoro, Sylwia Mikołajczyk, Agnieszka Tomkowiak, Danuta Kurasiak-Popowska and Paweł Poślednik
Plants 2023, 12(2), 278; https://doi.org/10.3390/plants12020278 - 7 Jan 2023
Cited by 3 | Viewed by 1991
Abstract
Among cereals, triticale (×Trititcoseale Wittmack ex A. Camus) represents a number of advantages such as high grain yield even in marginal environments, tolerance to drought, cold and acid soils, as well as lower production costs. Together with high biomass of grain and [...] Read more.
Among cereals, triticale (×Trititcoseale Wittmack ex A. Camus) represents a number of advantages such as high grain yield even in marginal environments, tolerance to drought, cold and acid soils, as well as lower production costs. Together with high biomass of grain and straw, triticale is also considered as an industrial energy crop. As an artificial hybrid, it has not evolved naturally, which is reflected in narrow genetic diversity causing a resistance collapse in recent years. Here, we describe a novel, synthetic tetraploid triticale, which was developed by the crossing of rye (Secale cereale L.) with einkorn wheat (Triticum monococcum spp. monococcum), which possess Sr35 stem rust resistance gene. Three subsequent generations of alloploids were obtained by chromosome doubling followed by self-pollination. The cytogenetic analyses revealed that the amphiploids possess a set of 28 chromosomes (14 of Am-genome and 14 of R-genome). The values of the most important yield-shaping traits for these tetraploid triticale form, including thousand-grain weight, plant height and stem length were higher compared to parental genotypes, as well as standard hexaploid triticale cultivars. This study shows that this tetraploid triticale genetic stock can be an interesting pre-breeding germplasm for triticale improvement or can be developed as a new alternative crop. Full article
(This article belongs to the Special Issue Chromosome Engineering in Plants: Genetics, Breeding, Evolution)
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