Functional factor analysis in sesame under water - limiting stress: New concept on an old method
Sadollah Mansouri
sadollahmasouri@yahoo.comOil Seed Crop Res. Department, Seed & Plant Improvement Institute, Karaj, I. R. Iran; (Iran, Islamic Republic of)
Masood Soltani Najafabadi
Oil Seed Crop Res. Department, Seed & Plant Improvement Institute, Karaj, I. R. Iran (Iran, Islamic Republic of)
Maghsadollah Esmailov
Genetics and Selection Department, Agricultural University of Tajikistan, Tajikistan (Tajikistan)
Mostafa Aghaee
Seed & Plant Improvement Institute, Karaj, I. R. Iran (Iran, Islamic Republic of)
Abstract
Multivariate statistical analysis, through their ability to extract hidden relationship between various traits, has a wide application in breeding programs. Having physiological concept on the multivariate analysis, factor analysis was used to extract differential relationships between different components involving in assimilate partitioning in sesame under regular irrigation regime and limited irrigation. The analysis revealed that under regular irrigation regime, the stored and/or currently produced assimilates are allocated to the filling seeds. However, incidence of water shortage in the beginning of flowering time make shifts in assimilate partitioning from formation of new seeds or capsules to the not-matured pre-formed seeds, which results in seeds with more nutrient storage. This indicates the requirement for change in breeding strategies under sub-optimal condition. The possible common language between factor concept in multivariate analysis, QTLs in genetics, and transcription factors in molecular biology is indicated.
Keywords:
assimilate partitioning, factor analysis, QTL, sesame, transcription factorReferences
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Authors
Sadollah Mansourisadollahmasouri@yahoo.com
Oil Seed Crop Res. Department, Seed & Plant Improvement Institute, Karaj, I. R. Iran; Iran, Islamic Republic of
Authors
Masood Soltani NajafabadiOil Seed Crop Res. Department, Seed & Plant Improvement Institute, Karaj, I. R. Iran Iran, Islamic Republic of
Authors
Maghsadollah EsmailovGenetics and Selection Department, Agricultural University of Tajikistan, Tajikistan Tajikistan
Authors
Mostafa AghaeeSeed & Plant Improvement Institute, Karaj, I. R. Iran Iran, Islamic Republic of
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