Evolution and Selection of Quantitative Traits II: Advanced Topics

نویسنده

  • B. Walsh
چکیده

30. SELECTION AND DEVELOPMENT OF PURE LINES 337 Pure Line Selection: Basic Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293 Multistage Selection: Finney’s Rule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294 Controlling the Residual Variance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295 Replication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296 Field plot design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298 Accounting for G× E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 Choosing the Best Genotypes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303 Least significant difference (LSD) tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303 Type I, II, and III Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303 Probability of choosing the best genotypes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305 Accuracy vs. intensity in selecting the best lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306 Advancement of Generations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309 Pedigree selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309 Bulk selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314 Is early generation selection effective? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316 Single seed descent (SSD) selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319 Doubled haploid (DH) selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320 Comparison of the different methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320 Sampling of Genotypes and Selection Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322 Choice of Parents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326 Using phenotypic information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327 Using information for crosses: Diallels and DHs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329 Using information for crosses: The Jinks-Pooni method . . . . . . . . . . . . . . . . . . . . . . . . 330 Number of crosses vs. number of lines per cross . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332 Outcrossing hybrids before selfing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332 Recurrent Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332

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تاریخ انتشار 2014