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Agronomy
Special Issues
Application of Genomic Technologies in Adaptation and Domestication of Crops
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Application of Genomic Technologies in Adaptation and Domestication of Crops

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

Deadline for manuscript submissions: closed (1 August 2020) | Viewed by 7010

Special Issue Editor

Dr. Sukhjiwan Kaur

E-Mail Website
Guest Editor
Biosciences Research, Agriculture Victoria, AgriBio, 5 Ring Road, La Trobe University, Bundoora, VIC 3083, Australia
Interests: plant genetics and genomics; next-generation sequencing; high-throughput genotyping and phenotyping; molecular breeding; genomic selection
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Crop domestication began approximately 12,000 years ago at the dawn of agriculture. During the domestication and crop evolution process, plant breeders have continuously selected for germplasm that is better adapted to use for human consumption and cultivation. As a result of that, a wide range of crop species now suffer from the problem of narrow genetic diversity (domestication bottlenecks). The improvement of crop varieties whilst maintaining diversity in the breeding pool for ongoing sustainable genetic gain is a challenging task. Hence, the identification of diverse genetic resources for use in plant breeding programs has now become a key goal in many crop improvement programs. Advancements in genomics technologies have delivered a variety of molecular tools to support research in crop domestication and adaptation. We invite you to share your success stories in this Special Issue. Submissions on (but not limited to) the following topics are invited: (1) exploration of crop wild relatives (CWRs) for improved genetic diversity; (2) application of genomic technologies to identify novel alleles; (3) genomic selection for enhanced genetic gain and crop productivity; (4) integration of useful alleles from unadapted germplasm into elite background using molecular tools; and (5) population genetics studies for crop adaptation and domestication.

Dr. Sukhjiwan Kaur
Guest Editor

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

  • Crop wild relatives
  • Population genetics
  • Genomic selection
  • Genome-wide association studies
  • Crop phenology and adaptation
  • Yield stability
  • Enhanced crop productivity

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Published Papers (2 papers)

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12 pages, 475 KiB  
Article
Application of Genomics Approaches for the Improvement in Ascochyta Blight Resistance in Chickpea
by Shimna Sudheesh, Hossein V. Kahrood, Shivraj Braich, Nicole Dron, Kristy Hobson, Noel O. I. Cogan and Sukhjiwan Kaur
Agronomy 2021, 11(10), 1937; https://doi.org/10.3390/agronomy11101937 - 27 Sep 2021
Cited by 12 | Viewed by 3284
Abstract
Advancements in high-throughput genotyping and sequencing technologies are enabling the development of a vast range of genomic tools and resources for a new revolution in plant breeding. Several genotyping-by-sequencing (GBS) methods including capture-based, genome complexity reduction and sequencing of cDNA (GBS-t) are available [...] Read more.
Advancements in high-throughput genotyping and sequencing technologies are enabling the development of a vast range of genomic tools and resources for a new revolution in plant breeding. Several genotyping-by-sequencing (GBS) methods including capture-based, genome complexity reduction and sequencing of cDNA (GBS-t) are available for application in trait dissection, association mapping, and genomic selection (GS) in crop plants. The aims of this study were to identify genomic regions conferring resistance to Ascochyta blight (AB) introgressed from the wild Cicer echinospernum into the domesticated C. arietinum, through a conventional recombinant inbred population genotyped using a variety of GBS methods. Evaluation of GBS methods revealed that capture-based approaches are robust and reproducible while GBS-t is rapid and flexible. A genetic linkage map consisting of 5886 polymorphic loci spanning 717.26 cM was generated. Using field phenotyping data from two years, a single genomic region on LG4 was identified with quantitative trait loci (QTL) mapping. Both GBS methods reported in this study are well suited for applications in genomics assisted plant breeding. Linked markers for AB resistance, identified in the current study, provide an important resource for the deployment into chickpea breeding programs for marker-assisted selection (MAS). Full article
(This article belongs to the Special Issue Application of Genomic Technologies in Adaptation and Domestication of Crops)
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Review

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22 pages, 555 KiB  
Review
Potential Application of Genomic Technologies in Breeding for Fungal and Oomycete Disease Resistance in Pea
by Ambuj B. Jha, Krishna K. Gali, Zobayer Alam, V. B. Reddy Lachagari and Thomas D. Warkentin
Agronomy 2021, 11(6), 1260; https://doi.org/10.3390/agronomy11061260 - 21 Jun 2021
Cited by 15 | Viewed by 3227
Abstract
Growth and yield of pea crops are severely affected by various fungal diseases, including root rot, Ascochyta blight, powdery mildew, and rust, in different parts of the world. Conventional breeding methods have led to enhancement of host plant resistance against these diseases in [...] Read more.
Growth and yield of pea crops are severely affected by various fungal diseases, including root rot, Ascochyta blight, powdery mildew, and rust, in different parts of the world. Conventional breeding methods have led to enhancement of host plant resistance against these diseases in adapted cultivars, which is the primary option to minimize the yield losses. To support the breeding programs for marker-assisted selection, several successful attempts have been made to detect the genetic loci associated with disease resistance, based on SSR and SNP markers. In recent years, advances in next-generation sequencing platforms, and resulting improvements in high-throughput and economical genotyping methods, have been used to make rapid progress in identification of these loci. The first reference genome sequence of pea was published in 2019 and provides insights on the distribution and architecture of gene families associated with disease resistance. Furthermore, the genome sequence is a resource for anchoring genetic linkage maps, markers identified in multiple studies, identification of candidate genes, and functional genomics studies. The available pea genomic resources and the potential application of genomic technologies for development of disease-resistant cultivars with improved agronomic profile will be discussed, along with the current status of the arising improved pea germplasm. Full article
(This article belongs to the Special Issue Application of Genomic Technologies in Adaptation and Domestication of Crops)
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