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Papers by Patrick VINCOURT

Theoretical and Applied Genetics, Mar 16, 2022

BMC Plant Biology, Oct 19, 2017

Plant Pathology, Feb 19, 2016

HAL (Le Centre pour la Communication Scientifique Directe), May 29, 2016

A programme was designed by INRA and French sunflower breeding (GIE Protournesol) companies to wi... more A programme was designed by INRA and French sunflower breeding (GIE Protournesol) companies to widen the genetic basis to breed new sunflower cultivars. Populations were evaluated for yield, oil content and diseases, and were crossed with inbred lines with complementary behaviours, then F2 progenies were selected for their combining abilities with four testers and the best ones were used to build twenty nine gene pools. These pools were tested for their combining ability with four testers during three years. Significant gene pool effects, i.e. general combining abilities, and gene pool x tester effects, i.e. specific combining abilities, were observed. According to their combining abilities, the best pools for grain yield were 19 (early restorer populations), 14 (phomopsis resistant populations), 15 (French populations) and 7 (Russian and Argentine maintainer populations), and the pools 5 (Romanian maintainer populations), 11 (Russian early populations) and 12 (Russian populations w...

OCL, 2018

The Participatory Plant Breeding (PPB) concept emerged twenty years ago, particularly with the ai... more The Participatory Plant Breeding (PPB) concept emerged twenty years ago, particularly with the aim to build alternative organizations of the plant breeding activities in developing countries. It now as well questions the developed countries, in the frame of a more global expectation to make all the stakeholders more involved in the agricultural production, from the farmers to its final clients. We discuss here some of the questions addressed by this trend with regard to the definition of the ideotype: (a) different forms of PPB? (b) changing the paradigm: Client Oriented Breeding? (c) a new way to manage {genotype * environment} interactions? (d) mainly societal concerns at stake? (e) biodiversity and ideotypes. As the same key, technical, limiting factors are involved in both PPB and classical breeding, it is suggested to consider PPB as one of the ways in the frame of a general expectation for diversification, thus eventually resulting in the promotion of alternative ideotypes, ra...

Oléagineux, Corps gras, Lipides, 2003

Oléagineux, Corps gras, Lipides, 2010

Canadian Journal of Plant Science, 1983

The number of ovules of the first ear of maize (Zea mays L.) at silking time was studied on three... more The number of ovules of the first ear of maize (Zea mays L.) at silking time was studied on three single crosses ranging from very early flint to late maturing, in three locations, from the northern limit of culture for grain to good irrigated conditions of the southeastern part of France. The results show that the ovule number is mainly determined by genotypes and increases with lateness; means are as follows: F7 × F2, 338; WH × WJ, 448; W64A × F546, 589 ovules. The variation among environments is characterized by a CV of 9% but is not significant. Nevertheless a part of this variation seems to be explained by the duration, in terms of heat units, of the sowing-silking period.Key words: Zea mays L., ovule number, genotype-environment interaction

Botany, 2011

The Compositae is one of the largest and most economically important families of flowering plants... more The Compositae is one of the largest and most economically important families of flowering plants and includes a diverse array of food crops, horticultural crops, medicinals, and noxious weeds. Despite its size and economic importance, there is no reference genome sequence for the Compositae, which impedes research and improvement efforts. We report on progress toward sequencing the 3.5 Gb genome of cultivated sunflower ( Helianthus annuus ), the most important crop in the family. Our sequencing strategy combines whole-genome shotgun sequencing using the Solexa and 454 platforms with the generation of high-density genetic and physical maps that serve as scaffolds for the linear assembly of whole-genome shotgun sequences. The performance of this approach is enhanced by the construction of a sequence-based physical map, which provides unique sequence-based tags every 5–6 kb across the genome. Thus far, our physical map covers ∼85% of the sunflower genome, and we have generated ∼80× ge...

New Phytologist, May 2, 2014