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| Registros recuperados : 161 | |
| Registros recuperados : 161 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
19/11/2018 |
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Data da última atualização: |
19/11/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
SOUZA, S. C. de; CAVALCANTI, J. J. V.; RAMOS, J. P. C.; ALVES, I.; SANTOS, R. C. dos; LIMA, L. M. de. |
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Afiliação: |
SILMARA CHAVES DE SOUZA, UEPB - CAMPINA GRANDE, PB; JOSE JAIME VASCONCELOS CAVALCANTI, CNPA; JEAN PIERRE CORDEIRO RAMOS, UFPB - CAMPUS II , AREIA; ISAIAS ALVES, CNPA; ROSEANE CAVALCANTI DOS SANTOS, CNPA; LIZIANE MARIA DE LIMA, CNPA. |
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Título: |
Genetic divergence in Agave accessions through ISSR markers and phenotypic traits. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
African Journal of Agricultural Research, v. 13, n. 11, p. 526-533, Mar. 2018. |
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ISSN: |
1991-637X |
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DOI: |
10.5897/AJAR2017.12913 |
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Idioma: |
Inglês |
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Notas: |
Article number: 4C7CCF056288 |
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Conteúdo: |
The Agave genus is composed of about 200 species, but the cultivation of sisal for fiber production in Brazil is restricted to two species: Agave sisalana and Agave fourcroydes, both have several accessions with wide variability. The collection of Agave of Embrapa has 37 accessions maintained in situ and periodically evaluated agronomical traits. Most of these accessions have phenotypic similarities, although they differ in fiber quality, which are widely used for commercial purposes. The identification of promising accesses contributes to the advance in improvement works, focusing on commercial indication. In order to estimate the genetic divergence of this collection, a cluster analyses was performed based on Inter-Simple Sequence Repeat (ISSR) markers and phenotypic traits. Genomic DNA from these accessions were used in polymerase chain reaction (PCR) with thirty ISSR oligonucleotides. For phenotypic characterization, twelve descriptors were adopted based on morphological and agronomic data. The Unweighted Pair Group Method with Arithmetic Mean (UPGMA) and Tocher multivariate methods were adopted. Thirteen groups were formed by the Tocher Method and six by UPGMA; however UPGMA method was more representative in the group formation. The comparison of the band patterns among accessions derived from the shoots showed that genetic variability is generated during asexual reproduction in these plants. The four lines generated from Tatui were the most divergent accessions. These plants are tallest, with higher mass values of fresh and dry mucilage, fresh and dry fiber mass, fiber length and presence of spines at the edges. The accessions from Instituto Agronômico de Campinas (IAC) showed the lowest genetic distances, indicating a possible narrow genetic base and high kinship degree. The crossings between H-RN, H-Kenya, H-400 fls, and H-11648 with Tatuí 1, 2, 3, and 4 can be a valorous strategy to broadening genetic diversity among commercial and native sisal germplasm. MenosThe Agave genus is composed of about 200 species, but the cultivation of sisal for fiber production in Brazil is restricted to two species: Agave sisalana and Agave fourcroydes, both have several accessions with wide variability. The collection of Agave of Embrapa has 37 accessions maintained in situ and periodically evaluated agronomical traits. Most of these accessions have phenotypic similarities, although they differ in fiber quality, which are widely used for commercial purposes. The identification of promising accesses contributes to the advance in improvement works, focusing on commercial indication. In order to estimate the genetic divergence of this collection, a cluster analyses was performed based on Inter-Simple Sequence Repeat (ISSR) markers and phenotypic traits. Genomic DNA from these accessions were used in polymerase chain reaction (PCR) with thirty ISSR oligonucleotides. For phenotypic characterization, twelve descriptors were adopted based on morphological and agronomic data. The Unweighted Pair Group Method with Arithmetic Mean (UPGMA) and Tocher multivariate methods were adopted. Thirteen groups were formed by the Tocher Method and six by UPGMA; however UPGMA method was more representative in the group formation. The comparison of the band patterns among accessions derived from the shoots showed that genetic variability is generated during asexual reproduction in these plants. The four lines generated from Tatui were the most divergent accessions. These ... Mostrar Tudo |
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Thesagro: |
Agave Sisalana; Banco de Germoplasma; Fibra Vegetal; Marcador Molecular; Melhoramento Genético Vegetal; Sisal. |
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Thesaurus NAL: |
Germplasm. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/186287/1/2.-Genetic-divergence-in-Agave.pdf
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Marc: |
LEADER 02912naa a2200301 a 4500
001 2099578
005 2018-11-19
008 2018 bl uuuu u00u1 u #d
022 $a1991-637X
024 7 $a10.5897/AJAR2017.12913$2DOI
100 1 $aSOUZA, S. C. de
245 $aGenetic divergence in Agave accessions through ISSR markers and phenotypic traits.$h[electronic resource]
260 $c2018
500 $aArticle number: 4C7CCF056288
520 $aThe Agave genus is composed of about 200 species, but the cultivation of sisal for fiber production in Brazil is restricted to two species: Agave sisalana and Agave fourcroydes, both have several accessions with wide variability. The collection of Agave of Embrapa has 37 accessions maintained in situ and periodically evaluated agronomical traits. Most of these accessions have phenotypic similarities, although they differ in fiber quality, which are widely used for commercial purposes. The identification of promising accesses contributes to the advance in improvement works, focusing on commercial indication. In order to estimate the genetic divergence of this collection, a cluster analyses was performed based on Inter-Simple Sequence Repeat (ISSR) markers and phenotypic traits. Genomic DNA from these accessions were used in polymerase chain reaction (PCR) with thirty ISSR oligonucleotides. For phenotypic characterization, twelve descriptors were adopted based on morphological and agronomic data. The Unweighted Pair Group Method with Arithmetic Mean (UPGMA) and Tocher multivariate methods were adopted. Thirteen groups were formed by the Tocher Method and six by UPGMA; however UPGMA method was more representative in the group formation. The comparison of the band patterns among accessions derived from the shoots showed that genetic variability is generated during asexual reproduction in these plants. The four lines generated from Tatui were the most divergent accessions. These plants are tallest, with higher mass values of fresh and dry mucilage, fresh and dry fiber mass, fiber length and presence of spines at the edges. The accessions from Instituto Agronômico de Campinas (IAC) showed the lowest genetic distances, indicating a possible narrow genetic base and high kinship degree. The crossings between H-RN, H-Kenya, H-400 fls, and H-11648 with Tatuí 1, 2, 3, and 4 can be a valorous strategy to broadening genetic diversity among commercial and native sisal germplasm.
650 $aGermplasm
650 $aAgave Sisalana
650 $aBanco de Germoplasma
650 $aFibra Vegetal
650 $aMarcador Molecular
650 $aMelhoramento Genético Vegetal
650 $aSisal
700 1 $aCAVALCANTI, J. J. V.
700 1 $aRAMOS, J. P. C.
700 1 $aALVES, I.
700 1 $aSANTOS, R. C. dos
700 1 $aLIMA, L. M. de
773 $tAfrican Journal of Agricultural Research$gv. 13, n. 11, p. 526-533, Mar. 2018.
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Embrapa Algodão (CNPA) |
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