A5067654089- Wheat and Barley Genetics and Pathology
- Genetics and Plant Breeding
- Genetic Mapping and Diversity in Plants and Animals
- Crop Yield and Soil Fertility
- Bioenergy crop production and management
- Agricultural Productivity and Crop Improvement
- Land Rights and Reforms
- Legume Nitrogen Fixing Symbiosis
- Selenium in Biological Systems
- Agricultural Innovations and Practices
- Microfinance and Financial Inclusion
- Agricultural pest management studies
- Soybean genetics and cultivation
Norwich Research Park
2012-2019
John Innes Centre
2012-2019
The timing of flowering during the year is an important adaptive character affecting reproductive success in plants and critical to crop yield. Flowering time has been extensively manipulated crops such as wheat (Triticum aestivum L.) domestication, this enables them grow productively a wide range environments. Several major genes controlling have identified with mutant alleles having sequence changes insertions, deletions or point mutations. We investigated genetic variants commercial...
Earliness per se (Eps) genes account for the variation in flowering time when vernalization and photoperiod requirements are satisfied. Genomics bioinformatics approaches were used to describe allelic 40 Triticum aestivum predicted, by synteny with Brachypodium distachyon, be 1DL Eps region. Re-sequencing revealed that varieties carrying early heading alleles at this locus, Spark Cadenza, carry a subtelomeric deletion including several genes. The equivalent region Rialto Avalon is intact. A...
Differences in time to heading that remain after photoperiod and vernalisation requirements have been saturated are classified as earliness per se (Eps) effects. It has commonly assumed Eps genes purely constitutive independent of environment, although the likely effect temperature on effects hexaploid wheat never tested. We grew four near isogenic lines (NILs) for gene located chromosome 1D (Eps-D1) at 6, 9, 12, 15, 18, 21 24 °C. In line with expectations we found carrying Eps-late allele...
Vernalization, photoperiod and the relatively poorly defined earliness per se (eps) genes regulate flowering in plants. We report here validation of a major eps quantitative trait locus (QTL) located on wheat 1DL using near isogenic lines (NILs). used four independent pairs NILs derived from cross between Spark Rialto winter varieties, grown both field controlled environments. carrying allele, by QTL flanking markers Xgdm111 Xbarc62, consistently flowered 3-5 days earlier when fully...
Perception of photoperiod changes enables plants to flower under optimum conditions for survival. We used doubled haploid populations crosses among Avalon × Cadenza, Charger Badger and Spark Rialto identified short-day flowering time response quantitative trait loci (QTL) on wheat chromosomes 1BS 1BL. synteny between Brachypodium distachyon identify potential candidates both QTL. The 1BL QTL peak coincided with TaFT3-B1, a homologue the barley gene HvFT3, most likely candidate gene....
Identification of earliness per se ( Eps ) flowering time loci in spring wheat are troublesome due to confounding effects vernalization and photoperiod responses. The Wheat Association Mapping Initiative panel 287 elite lines was assessed identify genomic regions associated with understand the treatments wheat. grown under field conditions four different treatments: (i) vernalization, where 1‐d germinated seeds were kept at 4°C for 6 8 wk; (ii) extended treatment, from seedling emergence 10...
Abstract Soybean is an emerging strategic crop for nutrition, food security, and livestock feed in Africa, but improvement of its productivity hampered by low genetic diversity. There need broadening the tropical germplasm base through incorporation introgression temperate Southern Africa breeding programs. Therefore, this study was conducted to determine population structure molecular diversity among 180 30 soybean accessions using single nucleotide polymorphism (SNP) markers. The results...
Abstract. Makore F, Gasura E, Souta C, Mazamura U, Derera J, Zikhali M, Kamutando CN, Magorokosho Dari S. 2021. Molecular characterization of a farmer-preferred maize landrace population from multiple-stress-prone subtropical lowland environment. Biodiversitas 22: 769-777. The study was conducted to assess genetic diversity 372 lines using 116 single nucleotide polymorphism (SNP) markers. Three hundred and forty-seven were S1 (coded J lines) local twenty-five the widely used standard lines....