We applied SSR markers for mapping genes determining red coleoptile colour in wheat (Rc1, Rc2, Rc3) using F2 populations. All three genes map at about 15 to 20 cM distally from the centromere of chromosomes 7AS, 7BS and 7DS, respectively. The locations of the glume colour (Bg, Rg1) and glume hairiness (Hg) genes relative to the SSR markers of the homoeologous chromosomes group 1 were determined using molecular analysis of near-isogenic lines (NILs). One RAPD marker for the vernalisation response gene Vrn-A1 was identified by screening 95 random primers against two pairs of NILs. New PCR (STS) markers were developed based on RFLP-markers PSR426 (5A, 5B, 5D) and PSR1201 (1A, 5A, 5B). Analysis of nulli-tetrasomic and near-isogenic lines of wheat using the STS markers developed gave an indication that these new STS markers have the same chromosomal and intrachromosomal positions as the correspondent RFLP markers. Therefore, they could be used for mapping and/or tagging the vernalisation response (Vrn-A1, Vrn-B1, Vrn-D1) and homoeologous pairing (Ph1) genes.
Download full-text PDF |
Source |
---|
BioTechnologia (Pozn)
December 2024
Institute of Crop Science, College of Agriculture and Food Science, University of the Philippines Los Baños, Philippines.
Abaca ( Nee) is the primary source of manila hemp fiber, a vital industrial product for the country. Previous studies have relied on molecular markers designed for other species or distant genera like rice, limiting accurate genetic characterization and germplasm conservation. To address this, we developed 50 genome-specific molecular markers based on the recently released whole genome sequence assembly of Abaca var.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Environmental Management, Institute of Environmental Engineering, People's Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., 117198, Moscow, Russian Federation.
Developing high-yielding and resilient maize hybrids is essential to ensure its sustainable production with the ongoing challenges of considerable shifts in global climate. This study aimed to explore genetic diversity among exotic and local maize inbred lines, evaluate their combining ability, understand the genetic mechanisms influencing ear characteristics and grain yield, and identify superior hybrids suited for timely and late sowing conditions. Seven local and exotic maize inbred lines were genotyped using SSR (Simple Sequence Repeat) markers to assess their genetic diversity.
View Article and Find Full Text PDFBMC Genomics
January 2025
Institute of Aquatic Biotechnology, College of Life Sciences, Qingdao University, Qingdao, Shandong, 266071, China.
Background: Pleuronectiformes, also known as flatfish, are important model and economic animals. However, a comprehensive genome survey of their important organelles, mitochondria, has been limited. Therefore, we aim to analyze the genomic structure, codon preference, nucleotide diversity, selective pressure and repeat sequences, as well as reconstruct the phylogenetic relationship using the mitochondrial genomes of 111 flatfish species.
View Article and Find Full Text PDFFunct Integr Genomics
January 2025
ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
Waxy maize is highly preferred diet in developing countries due to its high amylopectin content. Enriching amylopectin in biofortified maize meets food security and fulfils the demand of rising industrial applications, especially bioethanol. The mutant waxy1 (wx1) gene is responsible for increased amylopectin in maize starch, with a wide range of food and industrial applications.
View Article and Find Full Text PDF3 Biotech
February 2025
Division of Genetics & Tree Improvement, ICFRE-Forest Research Institute, Dehradun, Uttarakhand 248195 India.
The natural population of have not been genetically enumerated due to a lack of genome sequence information or robust species-specific molecular marker. The present study was conducted to develop and validate genome-wide de novo simple sequence repeat (SSRs) markers in through shallow-pass genome sequencing. The genome sequence data of about 13 Gb was generated using Illumina technology, and high-quality sequence reads were de novo assembled into 1,390,995 contigs with GC content 42.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!