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Agronomy
Special Issues
Cereal Breeding for Abiotic Stress Tolerance
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Cereal Breeding for Abiotic Stress Tolerance

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Crop Breeding and Genetics".

Deadline for manuscript submissions: closed (31 August 2023) | Viewed by 7235

Special Issue Editors

Dr. Shengguan Cai

E-Mail Website
Guest Editor
College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
Interests: evolution of abiotic stress resistance; plant metabolic diversity
Special Issues, Collections and Topics in MDPI journals
Dr. Chenchen Zhao

E-Mail Website
Guest Editor
Tasmanian Institute of Agriculture, University of Tasmania, Launceston, TAS 7250, Australia
Interests: ABA signaling; abiotic stress; stomata
Special Issues, Collections and Topics in MDPI journals
Dr. Yuqing Huang

E-Mail Website
Guest Editor
Hangzhou Academy of Agricultural Sciences, Hangzhou, China
Interests: plant multi-omics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Cereal crops, such as rice, wheat, barley and maize, are the most important food resource for human beings. With the rapid growth of the world population, the demand for food is increasing. However, global climate change (heat, drought, flood, etc.) and adverse soil conditions (salinity, soil acidification, nutrient deficiency, etc.) pose severe constraints on crop growth, quality and yield. Cereal plants have evolved stress resistance abilities to deal with adverse environments at physiological, cellular and molecular levels. Unraveling the underlying mechanism, and identifying elite germplasms and resistance genes, will definitely facilitate cereal breeding for abiotic stress resistance. This Special Issue entitled “Cereal Breeding for Abiotic Stress Tolerance” will cover, but is not limited to, the following topics:

(1) Exploration of elite germplasms for abiotic stress resistance.

(2) Identification of genes responsible for abiotic stress resistance using QTL or genome-wide association studies (GWAS).

(3) Physiological and molecular mechanisms of abiotic stress tolerance/resistance in cereal plants.

(4) Omics studies on abiotic stress response in cereal plants.

(5) Functional characterization of genes responsible for abiotic stress resistance in cereal plants.

(6) The development or application of methodologies of cereal breeding for abiotic stress resistance.

Dr. Shengguan Cai
Dr. Chenchen Zhao
Dr. Yuqing Huang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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. Agronomy 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.

Keywords

  • abiotic stress
  • cereal
  • genome-wide association study
  • gene function
  • omics

Published Papers (4 papers)

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Research

12 pages, 964 KiB  
Article
Evaluation of Population and Hybrid Varieties of Winter Rye in the Conditions of Eastern Siberia
by Anatolii V. Pomortsev, Nikolay V. Dorofeev, Svetlana Yu. Zorina, Natalia B. Katysheva, Lada G. Sokolova, Anna S. Zhuravkova and Elena V. Mikhailova
Agronomy 2023, 13(5), 1431; https://doi.org/10.3390/agronomy13051431 - 22 May 2023
Cited by 1 | Viewed by 873
Abstract
Winter rye has a high adaptive capacity to abiotic and biotic stressors compared to other winter crops (wheat, triticale, barley, and oats). High resistance of winter rye to adverse environmental factors and a wide range of its uses increase interest in this crop. [...] Read more.
Winter rye has a high adaptive capacity to abiotic and biotic stressors compared to other winter crops (wheat, triticale, barley, and oats). High resistance of winter rye to adverse environmental factors and a wide range of its uses increase interest in this crop. The purpose of this research was to evaluate the adaptive capacity of population and hybrid varieties of winter rye and to identify varieties suitable for the soil and climate conditions of Eastern Siberia. A number of winter rye varieties of various geographical origins were tested during three field seasons. In all the field seasons, the population varieties (Tagna, Mininskaya, and Chulpan) were the most productive and most resistant to adverse environmental factors compared to the hybrid wheat (KWS Aviator, KWS Prommo, and KWS Ravo). Statistically significant (p < 0.001 in 2019/2020 and p < 0.001 in 2021/2022) differences in field survival and yield between the population and hybrid varieties were noted. Full article
(This article belongs to the Special Issue Cereal Breeding for Abiotic Stress Tolerance)
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17 pages, 2831 KiB  
Article
Resilience to Terminal Drought, Heat, and Their Combination Stress in Wheat Genotypes
by Sindhu Sareen, Neeraj Budhlakoti, K K Mishra, Swati Bharad, N R Potdukhe, Bhudeva Singh Tyagi and Gyanendra Pratap Singh
Agronomy 2023, 13(3), 891; https://doi.org/10.3390/agronomy13030891 - 17 Mar 2023
Cited by 2 | Viewed by 2514
Abstract
Heat and drought stresses have negative impacts on wheat yield and growth worldwide, causing up to 60% and 40% yield losses, respectively, but their combined effect can cause severe losses. The present study aimed to identify the high-yielding genetic resources tolerant to drought [...] Read more.
Heat and drought stresses have negative impacts on wheat yield and growth worldwide, causing up to 60% and 40% yield losses, respectively, but their combined effect can cause severe losses. The present study aimed to identify the high-yielding genetic resources tolerant to drought and/or heat stresses under climate change scenarios. The field trials on 42 genotypes were conducted at three locations in four environments (normal TSIR-NS, drought TSRF-DR, heat LSIR-HT, and heat and drought combined LSRF-DHT) each for two consecutive years. Yield contributing traits were recorded in all the experiments and all the locations: SI (susceptibility index) and STI (stress tolerance index) were also estimated. GY (Grain yield) was severely affected by LSRF-DHT (48.6%), followed by TSRF-DR (23.6%) and LSIR-HT (16.8%). GY had a positive correlation with BM (biomass), HI (harvest index), and TGW (1000-grain weight) under all environments and negative with DH (days to heading) (LSIR-HT and LSRF-DHT). Stepwise regression analysis revealed a higher contribution of BM and HI towards GY under all environments. GW (grain weight/spike) contributed under LSIR-HT and LSRF-DHT, and GN (grain number/spike) under TSIR-NS and TSRF-DR. GFD (grain-filling duration), TGW, and PTL (productive tillers) contributed under all conditions except LSRF-DHT. WS 2016-4 was the only genotype that yielded high under all the conditions. WS 2016-12 and CNM 16-1 were tolerant to heat and drought stresses and high yielding. HINDI 62, HTW 11, and QBP 1606 were less sensitive to all the stresses but low yielding. Overall, out of 30 tolerant genotypes (10 of each category), 19 adapted to escape mechanism which is irrespective of their yielding level. The study demonstrated the potential of identified genotypes in wheat breeding for climate resilience and the traits imparting tolerance to these genotypes. Full article
(This article belongs to the Special Issue Cereal Breeding for Abiotic Stress Tolerance)
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17 pages, 5759 KiB  
Article
Comparative Analysis of Root Transcriptome of High-NUE Mutant and Wild-Type Barley under Low-Nitrogen Conditions
by Runhong Gao, Longhua Zhou, Guimei Guo, Yingbo Li, Zhiwei Chen, Ruiju Lu, Chenghong Liu and Jianmin Chen
Agronomy 2023, 13(3), 806; https://doi.org/10.3390/agronomy13030806 - 10 Mar 2023
Cited by 1 | Viewed by 1267
Abstract
Although nitrogen (N) deficiency greatly affects N absorption and metabolism in barley, the global transcriptomic changes in morphological and physiological adaptation to altered N availability remains largely unclear. We conducted a comparative transcriptome analysis of roots in A9-29 (low N tolerant line of [...] Read more.
Although nitrogen (N) deficiency greatly affects N absorption and metabolism in barley, the global transcriptomic changes in morphological and physiological adaptation to altered N availability remains largely unclear. We conducted a comparative transcriptome analysis of roots in A9-29 (low N tolerant line of barley) and Hua 30 (low N-sensitive variety of barley) under low N conditions to elucidate the responses and the underlying molecular mechanism. The results demonstrated that the root architecture was strongly influenced and that the root morphological indexes (total root length, total root area surface, and root volume) were remarkably promoted in A9-29 compared to Hua30 under low N stress. The transcriptome analysis of roots identified 1779 upregulated differentially expressed genes (DEGs) and 1487 downregulated DEGs specifically expressed in A9-29 under low N stress. Specific DEGs in A9-29 were largely enriched in energy metabolism, lipid metabolism, and the metabolism of other amino acids. In addition, transcription factor genes ERFs and IAA-related genes were specifically expressed in A9-29. To conclude, this study could provide a foundation for improving low N tolerance in barley. Full article
(This article belongs to the Special Issue Cereal Breeding for Abiotic Stress Tolerance)
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17 pages, 7336 KiB  
Article
Genome-Wide Identification and Expression Analysis of RCC1 Gene Family under Abiotic Stresses in Rice (Oryza sativa L.)
by Qiwen Cen, Lihua Kang, Danni Zhou, Xian Zhang, Quanxiang Tian, Xiaoqin Zhang, Wangshu Mou, Cong Dang, Yunxia Fang and Dawei Xue
Agronomy 2023, 13(3), 703; https://doi.org/10.3390/agronomy13030703 - 27 Feb 2023
Cited by 3 | Viewed by 2080
Abstract
In plants, the essential roles played by the regulator of chromosome condensation 1 (RCC1) in diverse biological processes, including UV-B (ultraviolet-B radiation) response, hormonal signal transduction, cold tolerance and phenotypic plasticity, have been identified. No comprehensive study on the evolution and function of [...] Read more.
In plants, the essential roles played by the regulator of chromosome condensation 1 (RCC1) in diverse biological processes, including UV-B (ultraviolet-B radiation) response, hormonal signal transduction, cold tolerance and phenotypic plasticity, have been identified. No comprehensive study on the evolution and function of RCC1 gene family in rice has been carried out. A genome-wide analysis of this gene family is thus required. In this study, a total of 26 OsRCC1s unevenly distributed across 10 chromosomes were identified in rice. Based on their phylogenetic relationship and sequence composition, the OsRCC1 family could be classified into six groups. Members within the same group share a similar gene structure and protein motif/domain composition. Gene duplication analysis revealed that segmental duplication might be the main contributor to the expansion of the RCC1 gene family in rice. Several cis-regulatory elements (CREs) relevant to light, abscisic acid (ABA) and methyl jasmonate (MeJA) are abundant in the promoters of OsRCC1s. A large number of microRNA (miRNA) target sites were present in OsRCC1 mRNAs. Additionally, we used data from gene microarray and qRT-PCR to analyze the expression of OsRCC1 genes during various developmental stages and under abiotic stress conditions. OsRCC1s were found to be highly expressed in panicles and seeds, and most OsRCC1s were differentially expressed under abiotic stresses. Taken together, our study provides a systematic characterization of OsRCC1s and preliminarily explores their diversity as well as their biological functions. Evidence demonstrates that OsRCC1s may play vital roles in both development and abiotic stress response. The results presented here lay a foundation for further investigating the functions of OsRCC1s. Full article
(This article belongs to the Special Issue Cereal Breeding for Abiotic Stress Tolerance)
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