Molecular Strategies for Improving Agronomic Traits in Crops

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Genetics, Genomics and Biotechnology".

Deadline for manuscript submissions: closed (20 February 2023) | Viewed by 4172

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Guest Editor
Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China
Interests: photosynthesis; chloroplast biology; C4 biology; plant functional genomics; crop stress response; crop improvement
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Guest Editor
College of Agritulture and Biotechnology & ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311200, China
Interests: plant metabolism and cell biology

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College of Agriculture & Biotechnology, Zhejiang University, Hangzhou 310000, China
Interests: crop abiotic stress response; genome-wide association mapping; molecular biology
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Guest Editor
State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China
Interests: host–pathogen interaction in the blast pathosystem
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Special Issue Information

Dear Colleagues,

Our current trajectory for agricultural production, either in quantity or quality, is unable to meet the rising demand for the world’s growing population. Much greater and more sustainable crop yields must be achieved amid long-term global climate changes and short-term environmental extremes that adversely affect agronomic performance. Fortunately, recent developments in advanced technologies and emerging strategies have expedited the improvement of agronomic traits, not only in major crops but also in orphan crops for augmented productivity and stress resilience. Therefore, in this Special Issue, the investigation or review of any strategies (such as CRISPR, QTL mapping, GWAS, omics, machine learning, big data analysis, etc.) that identify, manipulate, and characterize genes/QTLs and novel/superior alleles, create new genetic resources, or construct new technological systems to disentangle underpinning mechanisms and accelerate breeding, selection, domestication or improvement of any agronomic traits (including but not limited to yield, photosynthesis, flowering, germination, architecture, biotic/abiotic stress tolerance, oil content, growth and development, cultivation and fertilizer responsiveness etc.) of any major, orphan crops or horticultural research fall within this broad scope. Submissions of original research articles, reviews, resources, technologies, and perspectives are all welcome.

Prof. Dr. Jun Liu
Prof. Dr. Ronghui Pan
Dr. Fangbin Cao
Prof. Dr. Yanjun Kou
Guest Editors

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Keywords

  • agriculture
  • technology
  • strategy
  • growth and development
  • stress
  • breeding
  • selection
  • domestication
  • improvement
  • agronomic traits
  • productivity
  • crops

Published Papers (2 papers)

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Research

16 pages, 3371 KiB  
Article
Optimized Method for the Identification of Candidate Genes and Molecular Maker Development Related to Drought Tolerance in Oil Palm (Elaeis guineensis Jacq.)
by Sunya Nuanlaong, Suwit Wuthisuthimethavee, Azzreena Mohamad Azzeme and Potjamarn Suraninpong
Plants 2022, 11(17), 2317; https://doi.org/10.3390/plants11172317 - 4 Sep 2022
Cited by 1 | Viewed by 1953
Abstract
Drought is a major constraint in oil palm (Elaeis guineensis Jacq.) production. As oil palm breeding takes a long time, molecular markers of genes related to drought tolerance characteristics were developed for effective selection. Two methods of gene identification associated with drought, [...] Read more.
Drought is a major constraint in oil palm (Elaeis guineensis Jacq.) production. As oil palm breeding takes a long time, molecular markers of genes related to drought tolerance characteristics were developed for effective selection. Two methods of gene identification associated with drought, differential display reverse transcription polymerase chain reaction (DDRT-PCR) and pyrosequencing platform, were conducted before developing the EST-SSR marker. By DDRT-PCR, fourteen out of twenty-four primer combinations yielded the polymorphism in leaf as 77.66% and root as 96.09%, respectively. BLASTN and BLASTX revealed nucleotides from 8 out of 236 different banding similarities to genes associated with drought stress. Five out of eight genes gave a similarity with our pyrosequencing sequencing database. Furthermore, pyrosequencing analysis of two oil palm libraries, drought-tolerant, and drought sensitive, found 117 proteins associated with drought tolerance. Thirteen out of sixty EST-SSR primers could be distinguished in 119 oil palm parents in our breeding program. All of our found genes revealed an ability to develop as a molecular marker for drought tolerance. However, the function of the validated genes on drought response in oil palm must be evaluated. Full article
(This article belongs to the Special Issue Molecular Strategies for Improving Agronomic Traits in Crops)
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23 pages, 9331 KiB  
Article
Genome-Wide Identification and Characterization of Oil-Body-Membrane Proteins in Polyploid Crop Brassica napus
by Wei Zhao, Jun Liu, Lunwen Qian, Mei Guan and Chunyun Guan
Plants 2022, 11(17), 2241; https://doi.org/10.3390/plants11172241 - 29 Aug 2022
Cited by 2 | Viewed by 1575
Abstract
Oil-body-membrane proteins (OBMPs) are essential structural molecules of oil bodies and also versatile metabolic enzymes involved in multiple cellular processes such as lipid metabolism, hormone signaling and stress responses. However, the global landscape for OBMP genes in oil crops is still lacking. Here, [...] Read more.
Oil-body-membrane proteins (OBMPs) are essential structural molecules of oil bodies and also versatile metabolic enzymes involved in multiple cellular processes such as lipid metabolism, hormone signaling and stress responses. However, the global landscape for OBMP genes in oil crops is still lacking. Here, we performed genome-wide identification and characterization of OBMP genes in polyploid crop Brassica napus. B. napus contains up to 88 BnaOBMP genes including 53 oleosins, 20 caleosins and 15 steroleosins. Both whole-genome and tandem duplications have contributed to the expansion of the BnaOBMP gene family. These BnaOBMP genes have extensive sequence polymorphisms, and some harbor strong selection signatures. Various cis-acting regulatory elements involved in plant growth, phytohormones and abiotic and biotic stress responses are detected in their promoters. BnaOBMPs exhibit differential expression at various developmental stages from diverse tissues. Importantly, some BnaOBMP genes display spatiotemporal patterns of seed-specific expression, which could be orchestrated by transcriptional factors such as EEL, GATA3, HAT2, SMZ, DOF5.6 and APL. Altogether, our data lay the foundations for studying the regulatory mechanism of the seed oil storage process and provide candidate genes and alleles for the genetic improvement and breeding of rapeseed with high seed oil content. Full article
(This article belongs to the Special Issue Molecular Strategies for Improving Agronomic Traits in Crops)
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