Yield potential and its stability, host plant resistance to pathogens and pests affecting crops, adaptation to stressful environments, resource-use efficiency and quality traits can be improved after delivering genetic gains in agro-ecosystems, thus ensuring food to end hunger and improving human health through nutrition sustainably (i.e., Sustainable Development Goal 2). Genetic gains depend on available heritable variation in the breeding population, the selected fraction of the population to be parents of the next generation and the timeframe for completing a selection cycle. They can be further advanced by improving accuracy, increasing selection intensity, enhancing genetic variation and shortening breeding cycles.
The breeder’s equation predicts changes in traits due to selection and is defined as ΔG = [(ck σ2g’)/(y σP)], where c, k and y are the parental control, a function of the selection intensity, and number of years to complete one recurrent selection cycle, respectively, while σ2g’ and are σP the genetic variance among offspring or families, and the square root of the phenotypic variance, respectively. This measurement of selection response is also used in breeding for goal targeting, assessing achievements, defining methods, and decision making. This special issue on Genetic Gains in Plant Breeding aims to bring together articles showing research results on genetic gains either by measuring it through cultivar releases or (recurrent) selection in crops that feed the world. Articles showing new genetic enhancement approaches, selection methods and breeding tools that may increase or speed the rates of genetic gains are also welcome. We also encourage authors to submit manuscripts on expanding the use of germplasm held in genebank for bettering genetic gains in breeding programs.
Professor Rodomiro Ortiz
Submission Deadline: 15 June 2019
Manuscripts should be submitted online through Hapres Online Submission System. Please visit Guide for Authors before submitting a manuscript. Authors are encouraged to submit a paper as soon as it is ready and don’t need to wait until the deadline. Submissions will be sent to peer-review in order of arrival. Accepted papers will be published continuously in Crop Breeding, Genetics and Genomics (CBGG) and then gathered together on the special issue webpage. We welcome Research articles, Review papers and Short Communications. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for approval.
Virtual Special Issue (VSI) is a collection of papers centered around a specific topic, led by an expert (Guest Editor) in the field. Virtual Special Issues are an important component of our journal and cover current hot topics within the scope of the journal.
All papers belonging to a Virtual Special Issue will be gathered together on a single webpage. They are published in the regular issues of the journal as soon as publishable, and labeled as belonging to the Virtual Special Issue. A link from each paper will take you to the Virtual Special Issue website.
Submissions to Virtual Special Issues will undergo the same rigorous peer-review process as regular papers submitted to the journal.
Chair of Genetics and Plant Breeding
Department of Plant Breeding, Swedish University of Agricultural Sciences, Alnarp, Sweden