Environmental and genetic control of morphogenesis in crops: towards models simulating phenotypic plasticity

CSIRO Publishing - Tập 56 Số 11 - Trang 1289 - 2005
Michaël Dingkuhn1, Delphine Luquet1, Bénédicte Quilot‐Turion2, Philippe de Reffye1
1Cirad-amis, TA40/01 Av. Agropolis, 34398 Montpellier CEDEX 5, France.
2INRA, UR Plantes et Systèmes de Culture Horticoles, Domaine St Paul, Site Agroparc, 84914 Avignon Cedex, France.

Tóm tắt

As molecular biologists are realising the importance of physiology in understanding functional genomics of quantitative traits, and as physiologists are realising the formidable prospects for improving their phenotypic models with information on the underlying gene networks, researchers worldwide are working on linked physiological–genetic models. These efforts are in their early methodological stage despite, or because of, the availability of many different types of models, the problem being to bring together the different ways that scientists see the plant. This paper describes some current efforts to adapt phenotype models to the objective of simulating gene-phene processes at the plant or crop scale. Particular emphasis is given to the models’ capacity to simulate genotype × environment interaction and the resulting phenotypic plasticity, assuming that this permits the defining of model parameters that are closer to specific gene action. Three different types of approaches are presented: (1) a generic, mathematical-architectural model called GREENLAB that simulates resource-modulated morphogenesis; (2) an ecophysiological model of peach tree fruit development and filling, parameterised for a mapping population to evaluate the potential of plugging quantitative trait locus (QTL) effects into the model; and (3) the new model Ecomeristem that constructs plant architecture and its phenotypic plasticity from meristem behaviour, the principal hypothesis being that resource limitations and stresses feed back on the meristems. This latter choice is based on the fact that gene expression happens to a large extent in the meristems. The model is evaluated on the basis of preliminary studies on vegetative-stage rice. The different modelling concepts are critically discussed with respect to their ability to simulate phenotypic plasticity and to operate with parameters that approximate specific gene action, particularly in the area of morphogenesis.

Từ khóa


Tài liệu tham khảo

10.1104/pp.119.1.241

10.1016/S0304-3800(98)00100-8

Dauzat, 1994, Ol�agineux, 49, 8

10.1016/S1161-0301(97)00029-4

Dingkuhn, 1990, Crop Science, 30, 1284, 10.2135/cropsci1990.0011183X003000060025x

10.1016/S0378-4290(97)00115-9

10.1016/S0378-4290(98)00152-X

10.1007/BF00056241

10.1016/S0378-4290(03)00070-4

10.1016/S0304-3800(03)00072-3

10.1051/agro:2001009

10.1046/j.1365-3040.1998.00322.x

G�nard, 2003, Tree Physiology, 23, 373, 10.1093/treephys/23.6.373

10.1016/S1161-0301(02)00093-X

10.1023/A:1022351203545

Hoogenboom, 2003, Agronomy Journal, 95, 82, 10.2134/agronj2003.0082

Jallas, 2000, Virtual Worlds, 2000, 235, 10.1007/3-540-45016-5_22

10.1046/j.1365-3180.1998.00092.x

10.1023/A:1002969932224

Kurth, 1997, Silva Fennica, 31, 285, 10.14214/sf.a8527

10.1016/S1161-0301(98)00035-5

10.1016/0022-5193(68)90079-9

10.1626/pps.8.145

10.1081/PLN-120004383

10.1016/S0168-1923(00)00194-5

10.1006/anbo.1996.0011

Prusinkiewicz, 1988, Computer Graphics, 22, 141, 10.1145/378456.378503

10.1093/jxb/erf001

de Reffye, 1999, Agronomie, 19, 265, 10.1051/agro:19990307

de Reffye, 1988, Computer Graphics, 22, 151, 10.1145/378456.378505

10.1104/pp.013839

10.1046/j.1365-3040.2003.00957.x

10.1016/j.agrformet.2004.08.005

10.1093/jexbot/51.350.1505

Veldboom, 1996, Crop Science, 36, 1310, 10.2135/cropsci1996.0011183X003600050040x

Veldboom, 1996, Crop Science, 36, 1320, 10.2135/cropsci1996.0011183X003600050041x

10.1016/S1161-0301(02)00100-4

10.1046/j.1439-0523.2001.00561.x

Yan, 2002, International Conferences in Central Europe on Computer Graphics, Visualization and Computer Vision, 10, 145

10.1093/aob/mch078

Yin, 2003, Agronomy Journal, 95, 90, 10.2134/agronj2003.9000