Crop Breeding and Applied Biotechnology最新文献

{"title":"Molecular characterization of Cassava (Manihot esculenta Crantz) with yellow-orange roots for beta-carotene improvement","authors":"C. Ferreira, E. Alves, K. N. Pestana, D. Junghans, A. K. Kobayashi, V. J. Santos, R. P. Silva, Paulino Silva, E. Soares, W. Fukuda","doi":"10.12702/1984-7033.V08N01A04","DOIUrl":"https://doi.org/10.12702/1984-7033.V08N01A04","url":null,"abstract":"Casssava (Manihot esculenta Crantz) is one of the main food and income sources of about 500 million people in the tropics. The crop is mainly cultivated by small farmers in tropical Africa, Asia and Latin America. Embrapa Mandioca e Fruticultura Tropical, based in Cruz das Almas, Bahia, maintains one of the largest cassava genebanks of Latin America. Among the accessions it contains, those with yellow-orange root color are particularly interesting. The objective of this study was to characterize 30 cassava accessions with yellow-orange root color by RAPD markers. The genetic distances of the 47 analyzed primers varied from 9.0 to 31.7 %, demonstrating the existing genetic variability to be exploited for the development of cassava varieties with higher beta-carotene contents. Molecular characterization of Cassava (Manihot esculenta Crantz) with yellow-orange roots for beta-carotene improvement Claudia Fortes Ferreira1*, Elaine Alves2, Katia Nogueira Pestana3, Davi Theodoro Junghans1, Adilson Kenji Kobayashi4, Vania de Jesus Santos3, Raimundo Pereira Silva1, Paulo Henrique Silva3, Ediclan Soares3, and Wania Fukuda1 1 Embrapa Mandioca e Fruticultura Tropical, s/n, C.P. 007, 44.380-000, Cruz das Almas, BA, Brasil, *E-mail: claudiaf@cnpmf.embrapa.br 2 Universidade Federal da Bahia (UFB), Rua Basilio da Gama, s/n, Canela, 40.110-907, Salvador, BA, Brasil 3 Universidade Federal do Reconcavo Baiano (UFRB), Campus Universitario da UFRB, 44.380-000, Cruz das Almas, BA, Brasil 4 Embrapa Meio-Norte, Av. Duque de Caxias, 5650, Buenos Aires, 64.006-220, Teresina, PI, Brasil INTRODUCTION Manihot esculenta Crantz is a species native to tropical America (Olsen and Schaal 2001), initially cultivated by native Latin Americans and later introduced into the African and Asian continents. The worldwide cassava production, on an area of 17.870.626 hectares is approximately 195.574.112 tons (FAO 2004). It is considered one of the most important sources of calories and is an inexpensive staple food in Latin America (Montero 2003), mainly in the northeastern region of Brazil (Mendes et al. 2006). The genetic diversity of this species is wide (Nassar 2006), concentrated mainly in Latin America and the Caribbean. Approximately 8500 cassava accessions are maintained worldwide in different collections, of which 7500 in South America (Costa and Morales 1994). Received 24 January 2007 Accepted 07 November 2007 In Brazil, 4132 accessions have been collected and are maintained in genebanks across the country (Fukuda 2000). Carotenes (-carotene, b-carotene, lycopene) represent the most multifaceted group of pigments in nature, with colors varying from yellow to red, found in photosynthetic and non-photosynthetic tissues, such as roots, seeds and fruits. Once ingested, b-carotene is transformed, in the liver, into Vitamin A. Vitamin A is a micro-nutrient with functions related to vision, cell differentiation, growth development, reproduction and the immune system. Vitamin A deficien","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"103 1","pages":"23-29"},"PeriodicalIF":1.5,"publicationDate":"2008-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77895503","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}

{"title":"Effects of endogamy on microsporogenesis in popcorn (Zea mays L.)","authors":"M.F.P.T.B. Silva, E. Lopes, M. S. Pagliarini, C. A. Scapiml","doi":"10.12702/1984-7033.V07N03A12","DOIUrl":"https://doi.org/10.12702/1984-7033.V07N03A12","url":null,"abstract":"","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"26 1","pages":"321-326"},"PeriodicalIF":1.5,"publicationDate":"2007-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79888326","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}

{"title":"Genetic variation among and within sweet corn populations detected by RAPD and SSR markers","authors":"A. Sebbenn, A. C. S. Zanatto, M. L. M. Freitais, A. S. Sato, L. C. Ettori","doi":"10.12702/1984-7033.V05N04A07","DOIUrl":"https://doi.org/10.12702/1984-7033.V05N04A07","url":null,"abstract":"","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"149 1","pages":"418-425"},"PeriodicalIF":1.5,"publicationDate":"2005-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73710291","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}

{"title":"Estatística genômica aplicada a populações derivadas de cruzamentos controlados","authors":"I. Schuster, C. D. Cruz","doi":"10.12702/1984-7033.V05N02A19","DOIUrl":"https://doi.org/10.12702/1984-7033.V05N02A19","url":null,"abstract":"","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"18 1","pages":"256-256"},"PeriodicalIF":1.5,"publicationDate":"2005-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82073636","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}

{"title":"Selection of Pinus caribaea var. bahamensis progenies based on the predicted genetic value","authors":"R. F. Missio, L. Antônio, Santos Henrique Brant Dias, Luiz Teixeira de Moraes","doi":"10.12702/1984-7033.V04N04A04","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N04A04","url":null,"abstract":"Pinus caribaea var. bahamensis progenies were selected by mixed models using the estimate of the genetic parameters by REML for the prediction of additive genetic values by BLUP. The experimental design was a 11 x 11 partially balanced square lattice containing 119 progenies and two commercial controls. After 13 years, the diameter at breast height (DBH), height and volume were evaluated. The progenies presented good mean performance (18.83 m, 20.80 cm and 0.462 m 3 tree -1 ), and heritability estimates of 0.12, 0.20 and 0.21 for height, DBH and volume, respectively. The trait with greatest variability was the volume w ith a genetic variation coefficient of 22.60% while the genetic variation for height was lower (3.73%). A genetic gain of 14.5% was obtained for DBH with a selection of 250 trees from 56 progenies, with a mean of 4.46 trees selected per progeny and an effecti ve population size of 72.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"35 1","pages":"399-407"},"PeriodicalIF":1.5,"publicationDate":"2004-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90927340","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}

{"title":"Genetic improvement of cacao","authors":"P. Griffee, É. Guimarães","doi":"10.12702/1984-7033.V04N04A21","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N04A21","url":null,"abstract":"","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"14 1","pages":"506-507"},"PeriodicalIF":1.5,"publicationDate":"2004-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74845066","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}

{"title":"‘Conilon Vitória - Incaper 8142’: improved Coffea canephora var. kouillou clone cultivar for the state of Espírito Santo","authors":"A. Fonseca, M. A. Ferrão, R. G. Ferrão, A. C. V. Filho, Paulo, Sérgio Volpi, Francisco Zucateli","doi":"10.12702/1984-7033.V04N04A20","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N04A20","url":null,"abstract":"Conilon Vitória Incaper 8142 is a Coffea canephora var. kouillou clone type cultivar developed by Incaper, composed by clustering 13 superior clones. It presents a mean productivity of 70.4 bags of 60 kg ha, broad environmental adaptation and production stability, drought tolerance, uniformity of fruit maturation, and moderate rust resistance.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"128 1","pages":"503-505"},"PeriodicalIF":1.5,"publicationDate":"2004-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86391649","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}

{"title":"Yield stability of soybean lines using additive main effects and multiplicative interaction analysis - AMMI","authors":"M. M. Rocha, N. Vello, Â. C. Almeida, Lopes, M. C. C. Maia","doi":"10.12702/1984-7033.V04N04A03","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N04A03","url":null,"abstract":"nes (G) using additive main effects and multiplicative interaction analysis (AMMI). Effects of the G, E, and GE interaction were found to be significant and accounted for 51, 12, and 36% of the variation, respectively. The first and only significant interaction princi pal component axis (IPCA1) accounted for 26% of the sum of squares due to original GE interaction. This concentrated the largest proportion of the pattern of GE interaction. Environments associated with Anhembi and Esalq proved more favorable, while Areao contributed negatively to the grain yield. However, Anhembi and Areao were more predictable for the crop years. USP 93-5082 and USP 93-5243 lines combined high adaptability and stability.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"53 1","pages":"391-398"},"PeriodicalIF":1.5,"publicationDate":"2004-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91162944","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}

{"title":"Introgression of Co-4 2 and Co-5 anthracnose resistance genes into 'Carioca' Common bean cultivars","authors":"A. L. Alzate-Marin, K. Arruda, K. A. Souza, E. G. Barros, M. Moreira","doi":"10.12702/1984-7033.V04N04A11","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N04A11","url":null,"abstract":"2 and Co-5 genes derived from G 2333, with the marker assisted selection (MAS), and b) the characterization of the resistant lines with different pathotypes of C. lindemuthianum. Thirteen lines of the 'carioca grain type' were selected; ten carrying the Co-4 2 and three the Co-5 gene, all showing resistance to the anthracnose pathotypes tested in this work. The association of adapted lines with the Co-4 2 gene combined with other resistance genes should provide durable resistance to this disease in Brazil and in other parts of the world.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"37 1","pages":"446-451"},"PeriodicalIF":1.5,"publicationDate":"2004-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78471226","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}

{"title":"Influence of the environmental index on the estimation of stability parameters of Eberhart and Russell","authors":"C. Pacheco, A. C. Oliveira, E. E. Gama, Manoel Xavier dos Santos, S. N. Parentoni, W. F. Meirelles, P. E. Guimarães, P. H. Ribeiro","doi":"10.12702/1984-7033.V04N04A15","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N04A15","url":null,"abstract":"The objective of this study was to verify the influence of the environmental index on the analysis and estimates of adaptability and stability parameters, using environmental indices obtained from four genotype groups (A, B, C, and QPM). Data of preliminary maize cultivars trials of Embrapa Maize and Sorghum, were used obtained in the 2000/2001 harvest season in nine environments of the southeast and central-western regions. The interchange of environmental indices did not affect the paramete r estimates and the genotype classification of the four groups equally in relation to their stabilities of yield and response to environments. The cause of this variation is probably more linked to the experimental errors and the differences in the interaction of the g enotypes of each group with the environments than to the covariance of the genotype means with their respective environmental indices.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"12 1","pages":"472-476"},"PeriodicalIF":1.5,"publicationDate":"2004-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89085533","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}