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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
15/09/2008 |
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Data da última atualização: |
15/09/2008 |
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Autoria: |
NOVO, M.; VELAVAN, T. P.; ALMODÓVAR, A.; SCHULENBURG, H.; DÍAZ-COSÍN, D. J.; MICHIELS, N. K. |
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Título: |
Microsatellite development and mating behaviour in the earthworm Hormogaster elisae. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM. |
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Idioma: |
Inglês |
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Conteúdo: |
Hormogaster elisae is an obligate outcrossing hermaphrodite, endemic to the central area of
the Iberian Peninsula. This earthworm species is adapted to sandy soils that are poor in organic
matter. As an endogeic and large-sized earthworm, not only is its reproductive cycle relatively
long but also its cocoon production rate is low when compared to other ecological types of
earthworms. Moreover, different amount of sperm has been observed inside its four
spermathecae, which could suggest that it is capable of separating the sperm of different partners.
As a result, sexual selection and mate choice could be expected.
When working in a cryptic system as it is the soil, molecular markers are essential to assess
mating behaviour questions. Microsatellites have been proved as a useful tool for such analysis
because of their high variability. Therefore, we successfully isolated ten polymorphic microsatellite
loci for this earthworm species. Characterization of these loci using 26 individuals revealed 8 to
25 alleles per locus and high levels of heterozygosity |
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Categoria do assunto: |
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Marc: |
LEADER 01849naa a2200181 a 4500
001 1314800
005 2008-09-15
008 2008 bl uuuu u00u1 u #d
100 1 $aNOVO, M.
245 $aMicrosatellite development and mating behaviour in the earthworm Hormogaster elisae.
260 $c2008
520 $aHormogaster elisae is an obligate outcrossing hermaphrodite, endemic to the central area of the Iberian Peninsula. This earthworm species is adapted to sandy soils that are poor in organic matter. As an endogeic and large-sized earthworm, not only is its reproductive cycle relatively long but also its cocoon production rate is low when compared to other ecological types of earthworms. Moreover, different amount of sperm has been observed inside its four spermathecae, which could suggest that it is capable of separating the sperm of different partners. As a result, sexual selection and mate choice could be expected. When working in a cryptic system as it is the soil, molecular markers are essential to assess mating behaviour questions. Microsatellites have been proved as a useful tool for such analysis because of their high variability. Therefore, we successfully isolated ten polymorphic microsatellite loci for this earthworm species. Characterization of these loci using 26 individuals revealed 8 to 25 alleles per locus and high levels of heterozygosity
700 1 $aVELAVAN, T. P.
700 1 $aALMODÓVAR, A.
700 1 $aSCHULENBURG, H.
700 1 $aDÍAZ-COSÍN, D. J.
700 1 $aMICHIELS, N. K.
773 $tIn: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM.
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Embrapa Florestas (CNPF) |
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