Molecular breeding

About: Molecular breeding is a research topic. Over the lifetime, 2120 publications have been published within this topic receiving 56908 citations.

Molecular breeding method for improving rice heading and flowering period heat resistance by using single fragment substitution line

Abstract: The invention belongs to the field of molecular breeding, and relates to a molecular breeding method for improving rice heading and flowering period heat resistance by using a single fragment substitution line According to the method, mid season indica rice two-line backbone restorer line 9311 with the preservation number being CGMCC NO 12532 is used as a female parent; the wild rice chromosomefragment introgression line YJ07-04-06 with the preservation number being CGMCC NO 12534 is used as a male parent; hybridization is performed for one generation; rotation crossing is performed threegenerations; then, self crossing is performed for three generations to obtain BC3F4; single plant harvesting is performed in each generation; then, molecular marker auxiliary selection is combined with an artificial climate room to simulate high temperature stress identification so as to obtain rice new strains By using the method, the rice heading and flowering period heat resistance new strainof 'No 2 Yuanye' is cultured The target properties are selected in an auxiliary way through molecular markers; the heading and flowering period heat resistance restoration line can be fast and efficiently cultured in 3 to 4 years

Potential of Molecular Plant Breeding for Sustaining the Global Food Security

Abstract: New alleles are continuously added to bring novel traits which are selected using genetic manipulations. Understanding the genes responsible for a particular phenotype involves recent genomic approaches which are to be integrated with conventional breeding programs for the crop improvement. Use of biotechnological tools merged with the conventional breeding practices has resulted molecular plant breeding which has significant contributions to food production, despite the presence of narrow genetic base in current materials used for breeding purposes. Use of molecular markers along with high-throughput genome sequencing efforts, have dramatically augmented our information to characterize the elite germplasm for the production of hybrids and improved populations. This review focuses on possibilities for the need and application of molecular breeding tools in the genetic improvement of the crop plants which can ensure sustainable food production for the increasing global population.

Editorial: Dissection of the molecular basis of fatty acid composition in oil crops and molecular breeding of oil crops with improved fatty acid composition

Abstract: COPYRIGHT © 2022 Kim and Li. This is an openaccess article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. TYPE Editorial PUBLISHED 20 October 2022 DOI 10.3389/fpls.2022.1053735

Quantitative Trait Loci Associated with Agronomical Traits in Strawberry

Abstract: The cultivated strawberry (Fragaria x ananassa) is derived from Fragaria chiloensis and Fragaria virginiana species a few centuries ago, and it is one of the most preferred and consumed berries all over the world because of its a good source in terms of many nutritional elements. Strawberry has high genetic variability and adaptation to different environmental conditions due to its highly heterozygous nature. In the last decades, many farmers, breeders, researchers even consumers have started to focus on berry quality traits such as large fruit, uniform shape, high fruit firmness, high fruit sensorial quality (aroma contents), color, gloss, and resistance to pathogens. Thus, the development of novel strawberry cultivars or genotypes with high nutritionally quality traits has become one of the main aims in strawberry breeding programs. Biotechnological tools such as the identification of quantitative trait loci (QTL) and marker-assisted selection (MAS) are the most widely used technologies in fruit breeding programs for shortening the breeding period. Identification of QTLs in agnomical important traits are very valuable tools for early selection in strawberry breeding programs. This chapter is focused on QTL and marker assisted breeding studies in strawberry to date and provides new perspectives on molecular breeding in strawberry breeding.