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Plant breeding in Brazil: Retrospective of the past 50 years 巴西植物育种:过去50年的回顾
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2021-06-21 DOI: 10.1590/1984-70332021v21sa16
M. Ramalho, T. L. Marques, Roxane do Carmo Lemos
{"title":"Plant breeding in Brazil: Retrospective of the past 50 years","authors":"M. Ramalho, T. L. Marques, Roxane do Carmo Lemos","doi":"10.1590/1984-70332021v21sa16","DOIUrl":"https://doi.org/10.1590/1984-70332021v21sa16","url":null,"abstract":"Abstract: The importance of plant breeding in Brazilian agriculture has grown a lot in the last 50 years. This occurred mainly because of the: increase in graduate programs, which qualified hundreds of professionals; creation of EMBRAPA and other research institutes or state companies, with an emphasis on the production of new cultivars and; promulgation of the cultivar protection law, which stimulates investments in seed production. The retrospective of what happened, enabling the country to move from being an importer of grains, fruits, and fibers to one of the largest exporters of these products worldwide, was the focus of this work. Taking as reference some agricultural products, this article highlights the significant contribution of plant breeding in recent years. Also, some of the enormous challenges that still have to be overcome, in which the participation of Brazilian breeders will be fundamental to continue the progress of agriculture in the coming years.","PeriodicalId":10763,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42488199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Environmental stratification and genotype recommendation toward the soybean ideotype: a Bayesian approach 大豆理想型的环境分层和基因型推荐:贝叶斯方法
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2021-05-21 DOI: 10.1590/1984-70332021V21N1A11
J. S. P. C. Evangelista, M. A. Peixoto, I. Coelho, R. S. Alves, F. F. Silva, M. Resende, F. L. Silva, L. L. Bhering
{"title":"Environmental stratification and genotype recommendation toward the soybean ideotype: a Bayesian approach","authors":"J. S. P. C. Evangelista, M. A. Peixoto, I. Coelho, R. S. Alves, F. F. Silva, M. Resende, F. L. Silva, L. L. Bhering","doi":"10.1590/1984-70332021V21N1A11","DOIUrl":"https://doi.org/10.1590/1984-70332021V21N1A11","url":null,"abstract":"Abstract The genotype × environment (G×E) interaction plays an essential role in phenotypic expression and can lead to difficulties in genotypes recommendation. Thus, the objectives of this study were: i) propose the Multi-Environment Index Based on Factor Analysis and Ideotype-Design/Markov Chain Monte Carlo (FAI/MCMC index), and ii) apply it for soybean genotypes recommendation. To this end, a data set with 30 soybean genotypes evaluated in 10 environments for grain yield trait was used. Variance components, genetic parameters and genetic values were estimated through MCMC algorithm. Environmental stratification was conducted by factor analyses and the selection of soybean genotypes was performed using the FAI/MCMC index. The results indicated the existence of genotypic variability and G×E interaction. The environments were grouped into three factors. The predicted genetic gains from indirect selection was 4.81%. Thus, our results suggest that the FAI/MCMC index can be successfully used in soybean breeding.","PeriodicalId":10763,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"1 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41738980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
SNP genotyping for fast and consistent clustering of maize inbred lines into heterotic groups 玉米自交系快速一致聚类的SNP基因分型
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2021-05-21 DOI: 10.1590/1984-70332021V21N1A10
Lander Santos de Oliveira, I. Schuster, E. Novaes, W. A. Pereira
{"title":"SNP genotyping for fast and consistent clustering of maize inbred lines into heterotic groups","authors":"Lander Santos de Oliveira, I. Schuster, E. Novaes, W. A. Pereira","doi":"10.1590/1984-70332021V21N1A10","DOIUrl":"https://doi.org/10.1590/1984-70332021V21N1A10","url":null,"abstract":"Abstract Advances in genotyping technologies have transformed the way breeding programs manage their genetic resources. The identification of single nucleotide polymorphisms (SNPs) can improve understanding of the genetic diversity of maize (Zea mays) inbred lines and their classification into heterotic groups, which is useful in determining certain crosses to obtain hybrids with higher yield performance. The genetic diversity of 293 inbred lines was investigated with 5252 SNPs with minor allele frequency (MAF)>5%. There was an average of 525 SNPs per chromosome. Polymorphism information content (PIC) averaged 0.297. The unweighted pair group method with arithmetic mean analysis (UPGMA) and principal component analysis (PCA) based on the genetic distance matrix revealed four similar clusters and high cophenetic correlation coefficients (0.953 and 0.863, respectively). The results showed consistency between genetic distance-based grouping and the heterotic groups previously established using pedigree and topcross information for the inbred lines studied.","PeriodicalId":10763,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47476611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Constitutive expression of a synthetic cry1Ab gene confers resistance to potato tuber moth (Phthorimaea operculella Zeller) larva 合成cry1Ab基因的组成表达赋予了马铃薯块茎蛾(Phthorimaea operculella Zeller)幼虫的抗性
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2021-05-21 DOI: 10.1590/1984-70332021V21N1A9
H. Salehian, H. Rahnama, S. Dezhsetan, S. Babaei
{"title":"Constitutive expression of a synthetic cry1Ab gene confers resistance to potato tuber moth (Phthorimaea operculella Zeller) larva","authors":"H. Salehian, H. Rahnama, S. Dezhsetan, S. Babaei","doi":"10.1590/1984-70332021V21N1A9","DOIUrl":"https://doi.org/10.1590/1984-70332021V21N1A9","url":null,"abstract":"Abstract The potato tuber moth (Phthorimaea operculella Zeller) (PTM) is a destructive potato pest. Bacillus thuringiensis cry genes encode crystal proteins that have toxic characteristics against PTM. The aim of the present study was to develop a PTM resistant potato cv. Agria using the synthetic Bt cry1Ab gene. The transformation vector was constructed by inserting the cry1Ab gene into the pBI121 binary expression vector. The Agrobacterium tumefaciens strain AGL1 harboring the pBI35SCry1Ab construct was used for potato transformation. The results indicated that out of 97 putative transformed lines, 30 lines were PCR positive. Southern blot analysis revealed that one to three copies of transgenes were inserted into transgenic lines. The immunoassay test revealed the expression of the Cry protein. Furthermore, the results of bioassays confirmed the high mortality level of neonate larvae. The results of this study suggested that the transgenic lines have significant potential in pest control.","PeriodicalId":10763,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48710403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Evaluation of families derived from backcrosses of processed tomato with dwarfism gene 加工番茄矮化基因回交家系评价
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2021-05-21 DOI: 10.1590/1984-70332021V21N1N13
P. Y. Cavasin, Leandro Augusto Andrade Fumes, A. R. Fonseca, D. Silva
{"title":"Evaluation of families derived from backcrosses of processed tomato with dwarfism gene","authors":"P. Y. Cavasin, Leandro Augusto Andrade Fumes, A. R. Fonseca, D. Silva","doi":"10.1590/1984-70332021V21N1N13","DOIUrl":"https://doi.org/10.1590/1984-70332021V21N1N13","url":null,"abstract":"Abstract In comparison to tomato plants without the dwarfism gene, dwarf tomato plants were shorter, had a smaller canopy diameter and remained upright during maturation, thereby reducing the fruit-soil contact, resulting in healthier fruits. This study evaluated tomato families of a BC1F3 population carrying the dwarf gene for industrial yield. The 150 BC1F3 families and the two parents (hybrid H-9889 and accession BGH-9889) as controls were assessed in an augmented block design with four replications. The data were subjected to variance analysis and the F test. A selection index, based on the sum of ranks of Mulamba and Mock (1978), was used for the selection of genotypes, considering the most relevant traits, i.e., canopy diameter, yield, lodging and fruit firmness. Thus, selection resulted in a yield gain of 8.04%.","PeriodicalId":10763,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47913199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Phylogenetic inference applied to germplasm bank characterization and interspecific breeding in passionfruit 系统发育推断在百香果种质库鉴定和种间育种中的应用
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2021-05-21 DOI: 10.1590/1984-70332021V21N1A12
P. Inglis, G. Bellon, N. Junqueira, F. Faleiro, M. E. Ferreira
{"title":"Phylogenetic inference applied to germplasm bank characterization and interspecific breeding in passionfruit","authors":"P. Inglis, G. Bellon, N. Junqueira, F. Faleiro, M. E. Ferreira","doi":"10.1590/1984-70332021V21N1A12","DOIUrl":"https://doi.org/10.1590/1984-70332021V21N1A12","url":null,"abstract":"Abstract Interspecific crosses between the more than 520 Passiflora species may or may not be compatible. The sequences ITS, matK, psbA-trnH, rbcL and trnL-F were used to confirm species identity and to estimate the genetic distances among 48 Passiflora accessions of a germplasm bank. Twenty species were used for crosses within and between distinct Passiflora subgenera. The phylogenetic resolution based on ITS data was superior to that of any single chloroplast marker, recommending it as a DNA barcode for this genus. However, the tree topology based on Bayesian phylogenetic analysis using the combination of the four chloroplast markers possessed greater support for subclades within the subgenus Passiflora, which contains more species of interest for breeders. We could not identify a clear cutoff value of pairwise Kimura two-parameter (K2P) distances to predict success or failure of crosses. Rather, the clustering of species pairs together within the same or closely related phylogenetic subclades predicted the probability of wide cross compatibility more reliably.","PeriodicalId":10763,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41876281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Heritability and combined parental information to define the number of crosses in circulant diallels 遗传力和结合亲本信息来确定循环双列的杂交数
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2021-01-01 DOI: 10.1590/1984-70332021v21n2c34
Gabriela Inocente, D. D. Garbuglio, P. Araújo, P. Ruas
{"title":"Heritability and combined parental information to define the number of crosses in circulant diallels","authors":"Gabriela Inocente, D. D. Garbuglio, P. Araújo, P. Ruas","doi":"10.1590/1984-70332021v21n2c34","DOIUrl":"https://doi.org/10.1590/1984-70332021v21n2c34","url":null,"abstract":"In many agricultural crops, the number of parents used in cross breeding make it difficult to obtain all possible hybrids in diallels. Therefore, using maize as a model plant and based on traits with high and low heritabilities, the aim of the present study was to quantify the correlation estimates of the general combining ability (GCA) and specific combining ability (SCA) between a complete diallel and a circulant diallel, with and without the inclusion of parents. For the high heritability trait, the GCA estimates can be obtained with low s values, whereas for the SCA estimates, s values close to half the number of parents should be used. For the low heritability trait, information from parents must be used to obtain the SCA estimates. For the GCA estimates, considering the stabilization of r above 0.70 for s=7, s values greater than half the number of parents must be used in the circulant models.","PeriodicalId":10763,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"1 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67259996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
UENF WS01: popcorn hybrid with water use efficiency for the State of Rio de Janeiro unenf WS01:巴西里约热内卢州用水效率高的爆米花杂交品种
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2021-01-01 DOI: 10.1590/1984-70332021v21n4c60
Valter Jário de Lima, A. T. A. Amaral Júnior, S. Kamphorst, Adriano dos Santos, K. Schmidt, V. C. Azeredo, J. T. Leite, Divino Rosa Dos Santos Junior, T. D. O. Santos, R. Bispo, Carolina Macedo Carvalho, Yure Pequeno de Souza, F. T. D. Oliveira, Marcelo Moura Chaves, Uéliton Alves de Oliveira, G. S. Mafra, P. H. Santos
{"title":"UENF WS01: popcorn hybrid with water use efficiency for the State of Rio de Janeiro","authors":"Valter Jário de Lima, A. T. A. Amaral Júnior, S. Kamphorst, Adriano dos Santos, K. Schmidt, V. C. Azeredo, J. T. Leite, Divino Rosa Dos Santos Junior, T. D. O. Santos, R. Bispo, Carolina Macedo Carvalho, Yure Pequeno de Souza, F. T. D. Oliveira, Marcelo Moura Chaves, Uéliton Alves de Oliveira, G. S. Mafra, P. H. Santos","doi":"10.1590/1984-70332021v21n4c60","DOIUrl":"https://doi.org/10.1590/1984-70332021v21n4c60","url":null,"abstract":"The UENF WS01 is a hybrid that has an early cycle and high grain yield capacity under low water and nitrogen availability. It maintains popping expansion even under abiotic stress, thus being recommended for cultivation in the North and Northwest of the State of Rio de Janeiro.","PeriodicalId":10763,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"143 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67261534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Obtaining okra hybrids through partial diallel analysis 通过部分双列分析获得秋葵杂交种
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2021-01-01 DOI: 10.1590/1984-70332021v21n4a50
E. H. C. Silva, W. Candido, L. T. Braz
{"title":"Obtaining okra hybrids through partial diallel analysis","authors":"E. H. C. Silva, W. Candido, L. T. Braz","doi":"10.1590/1984-70332021v21n4a50","DOIUrl":"https://doi.org/10.1590/1984-70332021v21n4a50","url":null,"abstract":"The exploration of heterosis can be an efficient alternative to increase okra yield. The partial diallel strategy optimizes resources by guiding crosses based on genetic diversity between various genotypes. This study aimed to identify potential hybrid combinations through diallel analysis in comparison with commercial cultivars. The hybrids were evaluated by means of a partial diallel scheme based on the genetic divergence of the genotypes. Fourteen hybrids and their reciprocals were evaluated in the winter and summer conditions of Jaboticabal – SP for yield, number of fruits and precocity. No line showed significant general combining ability. The reciprocal effect was not significant for the evaluated characteristics. Four hybrid combinations showed significant and positive specific combining ability for number of fruits, which were considered promising hybrids. In the winter, the experimental hybrids 1 x 8 and 3 x 8 showed superior performance compared to the commercial hybrids. No significant differences were observed in the summer.","PeriodicalId":10763,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"1 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67261753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Genetic variability and recurrent selection in corn population with potential for green corn production 具有绿玉米生产潜力的玉米群体的遗传变异和循环选择
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2021-01-01 DOI: 10.1590/1984-70332021v21n4a58
Maraiza Lima Costa, W. Candido, J. Pinto, C. M. Silva, B. Silva, E. F. Reis
{"title":"Genetic variability and recurrent selection in corn population with potential for green corn production","authors":"Maraiza Lima Costa, W. Candido, J. Pinto, C. M. Silva, B. Silva, E. F. Reis","doi":"10.1590/1984-70332021v21n4a58","DOIUrl":"https://doi.org/10.1590/1984-70332021v21n4a58","url":null,"abstract":"The present study selected progenies, aiming at the production of green corn, by methods of intrapopulation recurrent selection with subsequent recombination, generating open-pollinated populations. To this end, in the 2017/2018 second season, progenies from the PMVJ01 population (originated from the recombination of progenies of the TG-02R2 x AG1051 cross) were evaluated, using PMVJ01 and the hybrid AG1051 as controls. The following parameters were evaluated: flowering, heights, green ear yield, husk cover, ear diameter and length, mass yield, ear shape, number of rows on the ear, alignment of rows, color of kernels, and husk width and length. Genetic parameters were estimated, and the gain was predicted with the selection of 20% of the progenies, using the index of Mulamba and Mock in four selection procedures and a fifth by multivariate method. Genetic variability was found in the population, which allows advances in the selection process. After recombination, two of the populations generated showed potential for use as open-pollinated cultivar.","PeriodicalId":10763,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"1 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67261911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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