Identification and Innovation of Plant Genes

A special issue of Genes (ISSN 2073-4425). This special issue belongs to the section "Plant Genetics and Genomics".

Deadline for manuscript submissions: closed (25 August 2023) | Viewed by 2010

Special Issue Editor


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Guest Editor
Institute of Cotton Research (ICR), Chinese Academy of Agricultural Sciences (CAAS), Anyang, China
Interests: cotton germplasm; plant genetic breeding; salt resistance, drought resistance identification, resistance of innovation and its basic researches
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Special Issue Information

Dear Colleagues,

In the current context of continuous climatic change, abiotic stresses—especially drought, salinity, ion, and temperature stress pose significant threats to both agricultural crop production and plant biodiversity. The need for “Identification and Innovation of Plant Genes” is therefore clear.

This Special Issue invites contributions focused on the evaluation of crop genetic diversity associated with abiotic-stress mechanisms and innovations in plant germplasm, with a focus on utilizing the available diversity to improve existing germplasm resources by means of new molecular methods and conventional methods. Topics include—but are not limited to—the following:

  • Gene identification;
  • Plant breeding;
  • Abiotic stress;
  • Germplasm;
  • Innovation;
  • Improvement;
  • Diversity.

Prof. Dr. Wuwei Ye
Guest Editor

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Genes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (1 paper)

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Research

18 pages, 6383 KiB  
Article
Sequence Characterization of Extra-Chromosomal Circular DNA Content in Multiple Blackgrass (Alopecurus myosuroides) Populations
by Wangfang Fu, Dana R. MacGregor, David Comont and Christopher A. Saski
Genes 2023, 14(10), 1905; https://doi.org/10.3390/genes14101905 - 4 Oct 2023
Cited by 1 | Viewed by 1778
Abstract
Alopecurus myosuroides (blackgrass) is a problematic weed of Western European winter wheat, and its success is largely due to widespread multiple-herbicide resistance. Previous analysis of F2 seed families derived from two distinct blackgrass populations exhibiting equivalent non-target site resistance (NTSR) phenotypes shows resistance [...] Read more.
Alopecurus myosuroides (blackgrass) is a problematic weed of Western European winter wheat, and its success is largely due to widespread multiple-herbicide resistance. Previous analysis of F2 seed families derived from two distinct blackgrass populations exhibiting equivalent non-target site resistance (NTSR) phenotypes shows resistance is polygenic and evolves from standing genetic variation. Using a CIDER-seq pipeline, we show that herbicide-resistant (HR) and herbicide-sensitive (HS) F3 plants from these F2 seed families as well as the parent populations they were derived from carry extra-chromosomal circular DNA (eccDNA). We identify the similarities and differences in the coding structures within and between resistant and sensitive populations. Although the numbers and size of detected eccDNAs varied between the populations, comparisons between the HR and HS blackgrass populations identified shared and unique coding content, predicted genes, and functional protein domains. These include genes related to herbicide detoxification such as Cytochrome P450s, ATP-binding cassette transporters, and glutathione transferases including AmGSTF1. eccDNA content was mapped to the A. myosuroides reference genome, revealing genomic regions at the distal end of chromosome 5 and the near center of chromosomes 1 and 7 as regions with a high number of mapped eccDNA gene density. Mapping to 15 known herbicide-resistant QTL regions showed that the eccDNA coding sequences matched twelve, with four QTL matching HS coding sequences; only one region contained HR coding sequences. These findings establish that, like other pernicious weeds, blackgrass has eccDNAs that contain homologs of chromosomal genes, and these may contribute genetic heterogeneity and evolutionary innovation to rapidly adapt to abiotic stresses, including herbicide treatment. Full article
(This article belongs to the Special Issue Identification and Innovation of Plant Genes)
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