Teaching plant breeding held at the 95th annual meeting of the american society for. Plant breeding and genetics encyclopedia of life support. 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. A large number of individuals are crossed with this line and their progeny are evaluated. Pdf reciprocal recurrent selection in the breeding of brachiaria. The overall results showed that the procedure of rrs used was highly effective for improving the population cross, and could be used as an early testing for partially inbred lines.
Recurrent selection is a variation of backcross breeding, where selection for performance is. Essential for adapting to coming challenges and new. Rostock, wilhelmstahlalleez, 18196 dummerstorf german, received 12 may 1994, revised 12 april 1995 abstract selection is one of the. Responses to seven methods of recurrent selection in the bs11.
A new conceptual framework isabelle litrico1, and cyrille violle2 faced with an accelerating rate of environmental change and the associated need for a more sustainable, lowinput agriculture, the urgent new challenge for crop promoting science is to. Kidwell encyclopedia of life support systems eolss despite advances in technologies, plant breeding is still based on mendels original concept of inheritance which is extended to encompass the inheritance of quantitative. Recurrent selection on general and specific combining ability of. Pdf selection is an important breeding strategy practiced to improve many.
The process of recurrent selection 7 arose from a practical desire to improve parent line performance in the inbredhybrid 8 breeding method. Responses to seven methods of recurrent selection in the bs11 maize population roger a. Because plants are not totally genetically stable, it can be expected that deviations would occur through the years. Then, the reciprocal recurrent selection outlined showed that it can be useful to supplement pedigree selection in commercial maize hybrid breeding programmes. Broadly, marker assisted selection mas can be divided into two categories, that of markerassisted backcrossing or introgression and that of markerassisted recurrent selection or population improvement. You need to produce a cultivar that is unlike anything else available or differs significantly, and has the potential to sell at a high price and in large numbers. Selection, in the case of asexual plants, can be defined as the selection of the best performing plant and the vegetative propagation thereof. Genetic linkage is a phenomenon in which genes tend to be inherited together. This includes accounts of many of the developments in cytogenetics cytogenetics subject category. 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.
Introduction standard recurrent selection techniques in soybean marker. Recurrent selection an overview sciencedirect topics. Department of genetics and plant breeding, institute of agricultural sciences. In this a highly inbred line presumably homozygous at most loci is selected as a tester. They verified different types of epistasis and changes in combining ability variances related to grain yield, dry matter concentration and plant height. Breeding strategies for recurrent selection of maize. In the former, the goal is to incorporate one or few major genes or qtl into elite breeding lines or in some situations, a breeding. Breeding strategies for recurrent selection of maize 85 200females. Which recurrent selection scheme to improve mixtures of crop. The application of recurrent selection to animal breeding appears to be more difficult than its application to plant breeding because. Plant breeding is a science based on principles of genetics and cytogenetics. Common intrapopulation improvement methods in use include mass selection, eartorow selection, and recurrent selection.
Reciprocal recurrent selection in maize enhances heterosis. The objectives of this work were to analyze theoretical genetic gains of maize due to recurrent selection among fullsib and halfsib families, obtained by design i, fullsib design and halfsib design, and genotypic variability and gene loss with long term selection. The procedure of recurrent selection was described. Definition, aim, objectives and scope of plant breeding definition. Cab direct platform is the most thorough and extensive source of reference in the applied life sciences, incorporating the leading bibliographic databases cab abstracts and global health. Recurrent selection is a method which involves reselection generation after generation with interbreeding of selects to provide for genetic recombination. Several breeding methods are available to plant breeders for germplasm improvement, such as the pedigree method, bulk method, single seed descent, backcross method, and recurrent selection. 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 traditional approach to plant breeding with. Definition, aim, objectives and scope of plant breeding. Breeding signature of combining ability improvement revealed.
For a mixture combining the progeny families of candidates r of species 1 and s of. Individuals in two lines are not completely homozygous in opposite ways for all pairs of genes but that one allele may be present at a high frequency in one line and at a low frequency in. Most of the sources were introduced over 50 years ago and have been progressively recombined through a simple recurrent selection process. Recurrent selection for sca a form of recurrent selection that is used to improve the specific combining ability of a population for a character using homozygous tester also called half sib recurrent selection with homozygous tester. The process can break the linkage of disadvantageous. Intrapopulation methods may be based on single plants as unit of, or family.
It is also termed as recurrent reciprocal half sib selection. Improved varieties are developed through plant breeding. Thus it is a cyclic selection that is used to improve the frequency of desirable alleles for a character in a breeding population. 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 over others.
With halfsib design the simulation process assumed 200females and infinite male gametic pool. Therefore, for these characteristics, the specific combining ability sca is as important as the general combining ability. Modes of reproduction introduction reproduction modes autogamous crops consequences of selffertilisation. Breeding signature of combining ability improvement revealed by a. Burton2, svetlana balesevic tubic1, dragana miladinovic1, vuk djordjevic1, vojin djukic1 1institute of field and vegetable crops, m. Open access original paper recurrent selection methods to. Effectiveness of recurrent selection and recurrent irradiation in oat. Population improvement strategies for crop improvement. Recurrent selection as a scientific plant breeding method was not practiced in a.
Repetitive cycling and simple recurrent selection in. A sorghum practical haplotype graph facilitates genomewide. Selection index based on the relative importance of traits and possibilities in breeding popcorn r. The initial idea about recurrent selection was independently given by hayes and garber in 1919, and east and jones in 1920. Recurrent selection has been established as a very useful method for plant breeding. While improving food security in these regions will require a multifaceted approach, improved performance of crop varieties in these regions will play a critical role. Phenotypic recurrent selection in ideotype breeding of pinto. The north dakota breeding program primarily uses a modified pedigree program and, to a lesser degree, backcross, single seed descent, recurrent selection. Recurrent selection is an important breeding method employed to improve the. The genetic variances and covariances were obtained for intrapopulational p11 and p22 and.
Selection typically involves evaluating a breeding population for one or more traits in field or glasshouse trials e. Minimum number of individuals required for combining ability tests in reccurent selection methods and the change rate of that number were estimated by numerical computations derived from theoretical formulae. The principle of recurrent selection is developed out of convergent improvement. 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. Pdf phenotypic recurrent selection in ideotype breeding of. Feb 12, 2008 the fundamental basis of plant breeding is the selection of specific plants with desirable traits. Plant breeding can be accomplished through many different techniques ranging from simply selecting plants with desirable. Methods, models, and perspectives jose crossa,1, paulino perezrodriguez,2 jaime cuevas,3 osval montesinoslopez,4 diego jarquin,5. General combining ability, recurrent selection for specific. Selection index based on the relative importance of traits. The time period required for selection, testing, and reincorporation of improved genetic recombinants into the breeding program, or the completion of a cycle of recurrent selection, ranged from 6.
The theory of selection in plant breeding provides the conceptual framework. Breeding signature of combining ability improvement revealed by a genomic variation map from recurrent selection population in brassica napus. Pdf phenotypic recurrent selection in ideotype breeding. Plant breeding can be a risky business, though, if you do not have an adequate level of plant knowledge as well as horticultural skills. A reciprocal recurrent selection procedure outlined to. Jul 11, 2012 the objective of the research was to evaluate recurrent selection strategies in maize zea mays l. Breeding strategies for recurrent selection of maize scielo. It aims at improving the genetic makeup of the crop plants. Mar 27, 2020 much of the worlds population growth will occur in regions where food insecurity is prevalent, with large increases in food demand projected in regions of africa and south asia. Plant breeding can be defined as an art and science and technology of improving the genetic make up of plants in relation to their economic use for the man kind. Selection methods in plant breeding based on mode of. Finally, the techniques of recurrent selection are described and its application to maize and other crops considered. Performance through recurrent selection programs, and monitors.
Autopolypolids and allopolyploids are dealt with in the next few chapters. Phenotypic recurrent selection is defined as recurrent selection. Pdf plant growth habit type plays a major determining role in the acceptance of a dry bean cultivar by commercial growers. Thus it is evident that the ef fort of recording the genealogy of the segregating population should be. Tuchscherer department of biometry, research institute for biology of farm animals dummerstorj. Recurrent selection for specific combining ability in corn. Hallauer abstract methods include these three phases, they vary in types recurrent selection methods have been effectively used by maize of progenies evaluated i. It is also called as german method or german method of broad breeding because once it was used nicely in germany for improving the sugar beets and small grains such as rye and wheat. Genomic selection across multiple families in the breeding program. Full text of plant breeding principles and methods see other formats. There are two general types of cy clical selection methods, depending upon the pri mary goals of the breeding program. In this case the effective population size was approximately 800. Its objective are to improve yield, quality, disease resistance, drought and frost tolerance.
1398 1122 1439 613 952 1243 1595 1355 107 861 635 218 1256 796 875 869 1160 380 812 626 1069 354 1233 1517 1464 360 893 818 768 1140 601 140 1013 1357 1253 132 895 547 59 143 440 1063 591 708 390