Erosion of Brassica incana Genetic Resources: Causes and Effects

8th International Conference on Environmental Science and Technology

生态环境科学

Muscolo, A.^1 ; Settineri, G.^1 ; Mallamaci, C.^1 ; Papalia, T.^1 ; Sidari, M.^1

Agriculture Department, Mediterranea University Feo di Vito, Reggio Calabria

89124, Italy^1

关键词: Dynamic behaviors;    Early warning indicators;    Environmental constraints;    Genetic resources;    Human activities;    Plant breeding programs;    Secondary metabolites;    Species extinction;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/78/1/012014/pdf
DOI  :  10.1088/1755-1315/78/1/012014

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Brassica incana Ten., possessing a number of useful agronomic traits, represents a precious genetic resource to be used in plant breeding programs to broaden the genetic base in most Brassica crop species. B. incana that grows on limestone cliffs is at risk of genetic erosion for environmental constraints and human activities. We studied the pedological conditions of a Calabrian site where the B. incana grows, and we correlated the soil properties to the physiological and biochemical aspects of B. incana to identify the causes and effects of the genetic erosion of this species. Our results evidenced that physical soil conditions did not affect B. incana growth and nutraceutical properties; conversely, biological soil properties modified its properties. We identified leaf pigments and secondary metabolites that can be used routinely as early warning indicators of plant threat, to evaluate in a short term the dynamic behavior of plants leading to species extinction.