Individual selection of the first backcross generation of passion fruit potentially resistant to the fruit woodiness disease
Abstract The REML/BLUP procedure has been successfully used for genetic progress through individual selection of high-yielding passion fruit genotypes resistant to the Cowpea aphid-borne mosaic virus. This study was thus developed to estimate genetic parameters and predict the gain obtained from ind...
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| Format: | Article |
| Language: | English |
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Academia Brasileira de Ciências
2020-06-01
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| Series: | Anais da Academia Brasileira de Ciências |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000201021&tlng=en |
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| author | SANDRA C. PREISIGKE ALEXANDRE P. VIANA EILEEN A. SANTOS PAULO RICARDO DOS SANTOS MOISÉS AMBRÓSIO VALQUÍRIA O. DOS SANTOS FLAVIA A. DA SILVA |
| author_facet | SANDRA C. PREISIGKE ALEXANDRE P. VIANA EILEEN A. SANTOS PAULO RICARDO DOS SANTOS MOISÉS AMBRÓSIO VALQUÍRIA O. DOS SANTOS FLAVIA A. DA SILVA |
| author_sort | SANDRA C. PREISIGKE |
| collection | DOAJ |
| description | Abstract The REML/BLUP procedure has been successfully used for genetic progress through individual selection of high-yielding passion fruit genotypes resistant to the Cowpea aphid-borne mosaic virus. This study was thus developed to estimate genetic parameters and predict the gain obtained from individual selection of genotypes in a population derived from backcrosses in passion fruit. The experiment was set up as a randomized block design with four replicates, involving five full-sib families (genotypes from the first backcross). Variance components and the genetic values were estimated for eight agronomic traits via the REML/BLUP procedure. For all traits, genotypic variance between the genotypes from the first backcross showed little contribution to the phenotypic variance. The low heritability estimates obtained for the traits are overcome via individual BLUP estimates. Therefore, it was possible to obtain considerable gains with individual selection for the variables fruit length, average fruit weight, and pulp weight (19.50 to 14.04%; 22.93 to 17.97%; and 10.08 to 7.95%, respectively). For the traits showing lower gains, it is possible to obtain gains indirectly by selecting genotypes for correlated traits. Because this population derives from the first backcross generation, agronomic traits still must be recovered. |
| first_indexed | 2024-12-17T20:12:15Z |
| format | Article |
| id | doaj.art-7705a4f5022f467099e772f5aad9078e |
| institution | Directory Open Access Journal |
| issn | 1678-2690 |
| language | English |
| last_indexed | 2024-12-17T20:12:15Z |
| publishDate | 2020-06-01 |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj.art-7705a4f5022f467099e772f5aad9078e2022-12-21T21:34:13ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902020-06-0192suppl 110.1590/0001-3765202020180797Individual selection of the first backcross generation of passion fruit potentially resistant to the fruit woodiness diseaseSANDRA C. PREISIGKEhttps://orcid.org/0000-0002-9176-764XALEXANDRE P. VIANAhttps://orcid.org/0000-0002-2475-4910EILEEN A. SANTOShttps://orcid.org/0000-0001-8336-9839PAULO RICARDO DOS SANTOShttps://orcid.org/0000-0002-5968-5636MOISÉS AMBRÓSIOhttps://orcid.org/0000-0002-9545-4560VALQUÍRIA O. DOS SANTOShttps://orcid.org/0000-0001-8736-6387FLAVIA A. DA SILVAhttps://orcid.org/0000-0001-7818-707XAbstract The REML/BLUP procedure has been successfully used for genetic progress through individual selection of high-yielding passion fruit genotypes resistant to the Cowpea aphid-borne mosaic virus. This study was thus developed to estimate genetic parameters and predict the gain obtained from individual selection of genotypes in a population derived from backcrosses in passion fruit. The experiment was set up as a randomized block design with four replicates, involving five full-sib families (genotypes from the first backcross). Variance components and the genetic values were estimated for eight agronomic traits via the REML/BLUP procedure. For all traits, genotypic variance between the genotypes from the first backcross showed little contribution to the phenotypic variance. The low heritability estimates obtained for the traits are overcome via individual BLUP estimates. Therefore, it was possible to obtain considerable gains with individual selection for the variables fruit length, average fruit weight, and pulp weight (19.50 to 14.04%; 22.93 to 17.97%; and 10.08 to 7.95%, respectively). For the traits showing lower gains, it is possible to obtain gains indirectly by selecting genotypes for correlated traits. Because this population derives from the first backcross generation, agronomic traits still must be recovered.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000201021&tlng=enInterspecific hybridizationP. edulisREML/BLUPvirus |
| spellingShingle | SANDRA C. PREISIGKE ALEXANDRE P. VIANA EILEEN A. SANTOS PAULO RICARDO DOS SANTOS MOISÉS AMBRÓSIO VALQUÍRIA O. DOS SANTOS FLAVIA A. DA SILVA Individual selection of the first backcross generation of passion fruit potentially resistant to the fruit woodiness disease Anais da Academia Brasileira de Ciências Interspecific hybridization P. edulis REML/BLUP virus |
| title | Individual selection of the first backcross generation of passion fruit potentially resistant to the fruit woodiness disease |
| title_full | Individual selection of the first backcross generation of passion fruit potentially resistant to the fruit woodiness disease |
| title_fullStr | Individual selection of the first backcross generation of passion fruit potentially resistant to the fruit woodiness disease |
| title_full_unstemmed | Individual selection of the first backcross generation of passion fruit potentially resistant to the fruit woodiness disease |
| title_short | Individual selection of the first backcross generation of passion fruit potentially resistant to the fruit woodiness disease |
| title_sort | individual selection of the first backcross generation of passion fruit potentially resistant to the fruit woodiness disease |
| topic | Interspecific hybridization P. edulis REML/BLUP virus |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000201021&tlng=en |
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