Characterization of flowering time diversity in Miscanthus species

By E. Jensen, K. Farrar, S. Thomas‐Jones, A. Hastings, I. Donnison, J. Clifton‐Brown. 2011

84 citations recorded by the source corpus.

Miscanthus sinensis, M. sacchariflorus and their hybrids have been identified as leading candidates for the provision of bioenergy production across several continents. Flowering time is an important trait affecting biomass yield as well as certain quality attributes, such as moisture content at harvest. The aim of this study was to ascertain the level of diversity available to breeders and potential for hybridisation of different accessions in a large collection of Miscanthus. We also sought to determine trends in flowering time within and between species with respect to environment and origin of collection data (where known), whether flowering order was maintained across years, and the extent of uniformity of flowering in different genotypes. Flowering time was observed weekly in 244 genotypes of two Miscanthus species (M. sinensis, M. sacchariflorus) and inter‐specific hybrids including M. x giganteus over 3 years and using 4 clonal replicates of each genotype on a trial planted near Aberystwyth (Wales, UK). Differences in flowering time across the entire collection ranged from 160 to 334 days (June to November) and photoperiods between 7.8 and 16.6 h, with associated accumulated temperatures of 161 to 865oCd. More than two thirds of the collection flowered by the end of each growing season. M. sinensis individuals were the earliest genotypes to flower and showed the greatest diversity with respect to the onset of flowering. Flowering times in genotypes of known origin in Asia could be partially explained by growing season rain fall, degree days and mean temperature. Uniform flowering was identified in some genotypes. This will be important for the development of genetically diverse seed‐based crops. Rank order of flowering was shown to be consistent across Western Europe, thereby justifying single site trials as the basis of germplasm characterisation for wider geographical deployment.

Subfields: Agronomy and Crop Science, Biomedical Engineering, Molecular Biology

View Paper: https://www.semanticscholar.org/paper/a3a4091a80f71ee03690243ebeb9b7785472f148

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Agronomy and Crop Science

1. Michael B. Jones
2. J. Finnan
3. I. Donnison
4. K. Farrar
5. T. Hodkinson

In Biomedical Engineering

1. I. Donnison
2. K. Farrar

In Molecular Biology

1. R. Flavell
2. T. Hodkinson

Citations in the corpus

• Comprehending crystalline β-carotene accumulation by comparing engineered cell models and the natural carotenoid-rich system of citrus (2011, unknown): “superimposed onto a map of the provenance of those lines, reflected trends in temperature, degree days, and precipitation of those locations, rather than latitude alone (Jensen et al., 2011a).”
• Endophytic bacteria in Miscanthus seed: implications for germination, vertical inheritance of endophytes, plant evolution and breeding (2017, methodology): “Plant material used in this study was part of a diverse collection of 244 plants maintained and grown at IBERS (described previously by Jensen et al., 2011) grown in pots and in the field since collection.”
• Morphological and physiological traits for higher biomass production in perennial rhizomatous grasses grown on marginal land (2015, background): “Flowering time has a key role in determining the quantity and quality of the harvested biomass and considerable variation in flowering time among genotypes of some species has been demonstrated (Jensen et al., 2011).”