The process of recurrent selection 7 arose from a practical desire to improve parent line performance in the inbredhybrid 8 breeding method. Recurrent selection finalone free download as powerpoint presentation. Evaluation of progress in recurrent selection for specific. Secondly, breeders can decide how the selected individuals will be mated to each other either by inbreeding and crossbreeding. You need to produce a cultivar that is unlike anything else available or differs significantly, and. This seems to violate mendels postulate of independent assortment of genes and can make it difficult to pick out a single trait from one parent without also bringing. Genetic linkage is a phenomenon in which genes tend to be inherited together. Plant breeding can be accomplished through many different techniques ranging. Part of the plant breeding series book series plbr.
Recurrent selection for specific combining ability and recurrent selection for general combining ability have been. Recurrent selection is a method which involves reselection generation after generation with interbreeding of selects to provide for genetic recombination. Selection methods in plant breeding based on mode of reproduction jump to. Selection methods in plant breeding based on mode of. Recurrent selection by using genetic male sterility for. Gebvs can serve as a selection criterion in recurrent gs, maximizing singlecycle but not necessarily longterm genetic gain. Plant breeding can be defined as an art, a science, and technology of improving the genetic make up of plants in relation to their economic use for the man kind. Thus it is a cyclic selection that is used to improve the frequency of desirable alleles for a character in a breeding population. The application of recurrent selection to animal breeding appears to be more difficult than its application to plant breeding because. Reciprocal recurrent selection a form of recurrent selection that is used to improve both gca and sca of a population for a character using two heterozygous testers is known as reciprocal recurrent selection.
Ppt plant breeding methods powerpoint presentation. Articles perform the valuable function of collecting, comparing, and contrasting the primary journal literature in order to form an overview of the topic. Plant breeding can be a risky business, though, if you do not have an adequate level of plant knowledge as well as horticultural skills. The following points highlight the four main of plant breeding methods. Principles of plant genetics and breeding george acquaah. From 2008 to 2011, four cycles of two openpollinated op sweet corn populations were selected on a certified organic farm in minnesota using a modified ear. Recurrent selection is an important breeding method employed to improve the populations of crop plants particularly those of crosspollinated species. It is also termed as recurrent reciprocal half sib selection. Pdf organic growers face unique challenges when raising sweet. Recurrent selection for increased seed germination in sand. Pdf plant growth habit type plays a major determining role in the acceptance of a dry bean cultivar by commercial growers. Department of genetics and plant breeding, institute of agricultural sciences, banaras hindu university, varanasi, india. The process can break the linkage of disadvantageous alleles and pyramid favorable alleles through.
Introduction and selection methods plant breeding botany. Mass selection 43 recurrent phenotypic selection 43 progeny testing 44. Pdf phenotypic recurrent selection in ideotype breeding. Recurrent selection an overview sciencedirect topics. When a large number of plants of similar phenotype are selected and their seeds are mixed together to constitute a new variety. On the basis of experiments with rye, the writer comes to the conclusion that a breeding system founded on. Introduction to plant breeding master gardener training start with a seed germplasm germplasm the greatest service which can be. Formula2 affects genomic selection gs in rs, especially the persistency of prediction accuracy.
Which recurrent selection scheme to improve mixtures of crop. Comparision of halfsib and fullsib reciprocal recurrent selection and their modifications in simulated populations by b aminihennadege laknath peiris a dissertation submitted to the graduate faculty in partial fulfillment of the requirements for the degree of doctor of philosophy comajors. Drought is one of the major abiotic stresses affecting wheat yield. Breeding special methods in plant breeding taryono faculty of agriculture gadjah mada university plant evolution vs breeding. Principles of plant breeding icar ecourse pdf book.
Summary 58 think questions 58 5 genetics and plant breeding 60 introduction 60 qualitative genetics 60 genotypephenotype relationships 61 segregation of. Breeding signature of combining ability improvement. A recurrent selection program was conducted to improve the drought tolerance and yield of bread wheat using drought tolerant advanced breeding lines from a drought tolerant x susceptible cross hi 1500 x huw 510. Marker assisted selection or marker aided selection mas is an indirect selection process where a trait of interest is selected based on a marker morphological, biochemical or dnarna variation linked to a trait of interest e. Effectiveness of recurrent selection and recurrent irradiation in oat. The procedure of recurrent selection was described. Common intrapopulation improvement methods in use include mass selection, eartorow selection, and recurrent selection. Various procedures selections, hybridization, mutation, etc. Maintaining disease free parental lines and breeding selections 56 seed increase of clonal cultivars 57.
Synthetics are generated from a limited number of parents. Comparison of halfsib and fullsib reciprocal recurrent. Selection strategies and choice of breeding methods springerlink. Recurrent selection rs has been used in plant breeding to successively improve synthetic and other multiparental populations. Effect of recurrent selection on drought tolerance and. Plant breeding and genetics encyclopedia of life support. Recurrent selection as a breeding procedure for rye and. The theory of selection in plant breeding provides the conceptual framework for an a priori comparison of selection methods. Secondly, breeders can decide how the selected individuals will be mated to each other either by.
Hope you enjoyed our video lecture which covers the following topics. The present study showed the effectiveness of the recurrent selection method when applied in a. Responses to seven methods of recurrent selection in the. Materials and methods the plant materials used to initiate selection were two base populations of sand bluestem abmedium syn0 and cdtall syn0 that.
Principles of plant breeding icar e course free pdf book. This dissertation is brought to you for free and open access by the iowa state university capstones, theses and. Selection and mating in recurrent selection sciencedirect. Recurrent selection breeding by dominant male sterility. Hallauer abstract methods include these three phases, they vary in types recurrent selection methods have been effectively used by maize of progenies evaluated i. Persistency of prediction accuracy and genetic gain in. Recently, a male sterile line named as jiabuyu controlled by a novel single dominant gene was found, which provides an ideal tool for rice recurrent selection breeding. Selection on expected maximum haploid breeding values can. Scribd is the worlds largest social reading and publishing site.
Principles of plant breeding lec 01 aims and objectives of plant breeding lec 02 modes of reproduction lec 03 apomixis classification and significance in plant breeding lec 04 modes of pollination lec 05 classification of. Genomic selection gs offers the possibility to estimate the effects of genomewide molecular markers, which can be used to calculate genomic estimated breeding values gebvs for individuals without phenotypes. Introduction to plant breeding master gardener training. We investigated the accuracy of genomic estimated breeding values gebv in four interrelated synthetic populations that underwent several cycles of recurrent selection in an upland ricebreeding program. Genomic selection gs is a promising strategy for enhancing genetic gain. The inadequacy of the established breeding methods mass selection, family selection and the fact that a breeding procedure based on heterosis is not feasible for all crops, have given the incentive to search for more effective breeding methods, in particular for crossfertilized plants. Selfing cannabis for breeding selfing is the process of creating a seed by fertilizing a plant with. Free how to download pdf book full guide course outline. This nonrandom reproduction in a breeding population is called selection. The initial idea about recurrent selection was independently given by hayes and garber in 1919, and east and jones in 1920. Principles and utilization of combining ability in plant. Unesco eolss sample chapters soils, plant growth and crop production vol. Recurrent selection maintains genetic variability in the. Responses to seven methods of recurrent selection in the bs11 maize population roger a.
Kidwell encyclopedia of life support systems eolss dianthus herbatus and thus was more botanical in nature rather than aimed at the improvement of a crop population. If there are multiple traits that are being selected and introduced into a new population, other techniques like inbreeding or recurrent selection will be more worthwhile. Recurrent selection has not been extensively applied in rice breeding practices due to lack of male sterility genes. The obstacle to utilize this technique to improve selfpollinated crops is the difficulty to. Recurrent selection in breeding practice the interest in recurrent selection first arose in maize breeding programs because of general disappointment with the performancies of secondcycle hybrids hull, 1952. Such populations are characterized by a high degree of heterozygosity with tremendous free and potential genetic variation, which is maintained in a steady state by free gene flow among individuals within the populations. Recurrent selection and participatory plant breeding for. Presentday crop breeding and selection methods are based on the genetic. In any hybridization program, recognition of the best combination of two or more parental genotypes to maximize variance within related breeding populations, and as a result the chance of recognizing superior transgressive segregants in the segregating populations, are the most critical challenge to plant breeders. Pdf selection is an important breeding strategy practiced to improve many economic. Recurrent selection finalone plant breeding biological. Intrapopulation methods may be based on single plants as unit of, or family. Improving the seed germination of sand bluestem at low water potentials will increase the odds of establishment success in natural environments. Population improvement strategies for crop improvement.
Engineering design and analysis of the ariescs power plant engineering design and analysis of the ariescs power plant powerpoint ppt presentation free to. The objective of this experiment was to evaluate the changes made to openpollinated sweet corn populations using recurrent selection and a participatory plant breeding ppb methodology. Pdf effectiveness of recurrent selection in akebia. Radhakrishnan supriya, padmanabhan mallinath priyadarshan, in advances in genetics, 2019. This video lecture about the planned biotechnology explains about the different methods of plant breeding. The book demonstrates that ppb is in essence no different from conventional plant breeding, being based on the very same principles of mendelian, quantitative and population genetics, and therefore has complemented the. Aims and objectives of plant breeding plant breeding is an art and science, which tells us ways and means to change the genetic architecture of plants so as to attain a particular objective.
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