ArticleAnnals of botany2009
Using a model-based framework for analysing genetic diversity during germination and heterotrophic growth of Medicago truncatula.
Article in Annals of botany, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Divergent Selection for Seed Ability to Germinate at Extreme Temperatures in Perennial Ryegrass (Frontiers in plant science · 2021Article
- Combining Experimental and Modeling Approaches to Understand Genotype x Sowing Date x Environment Interaction Effects on Emergence Rates and Grain Yield of Soybean.Frontiers in plant science · 2020Article
- The History of Domestication and Selection of Lucerne: A New Perspective From the Genetic Diversity for Seed Germination in Response to Temperature and Scarification.Frontiers in plant science · 2020Article
- Metabolic signatures of germination triggered by kinetin in Medicago truncatula.Scientific reports · 2019Article
- Associating transcriptional regulation for rapid germination of rapeseed (Brassica napus L.) under low temperature stress through weighted gene co-expression network analysis.Scientific reports · 2019Article
- Abiotic Limits for Germination of Sugarcane Seed in Relation to Environmental Spread.Tropical plant biology · 2014Article
- Simulating the impact of genetic diversity of Medicago truncatula on germination and emergence using a crop emergence model for ideotype breeding.Annals of botany · 2011Article
- QTL analysis of seed germination and pre-emergence growth at extreme temperatures in Medicago truncatula.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2011Article
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6 authors.
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Abstract
BACKGROUND AND
aimsThe framework provided by an emergence model was used: (1) for phenotyping germination and heterotrophic growth of Medicago truncatula in relation to two major environmental factors, temperature and water potential; and (2) to evaluate the extent of genetic differences in emergence-model parameters.
methodsEight cultivars and natural accessions of M. trunculata were studied. Germination was recorded from 5 to 30 degrees C and from 0 to -0.75 MPa, and seedling growth from 10 to 20 degrees C. KEY
resultsThermal time to reach 50 % germination was very short (15 degrees Cd) and almost stable between genotypes, while base temperature (2-3 degrees C) and base water potential for germination (-0.7 to -1.3 MPa) varied between genotypes. Only 35 degrees Cd after germination were required to reach 30 mm hypocotyl length with significant differences among genotypes. Base temperature for elongation varied from 5.5 to 7.5 degrees C. Low temperatures induced a general shortening of the seedling, with some genotypes more responsive than others. No relationship with initial seed mass or seed reserve distribution was observed, which might have explained differences between genotypes and the effects of low temperatures.
conclusionsThe study provides a set of reference values for M. trunculata users. The use of the ecophysiological model allows comparison of these values between such non-crop species and other crops. It has enabled phenotypic variability in response to environmental conditions related to the emergence process to be identified. The model will allow simulation of emergence differences between genotypes in a range of environments using these parameter values. Genomic tools available for the model species M. trunculata will make it possible to analyse the genetic and molecular determinants of these differences.
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