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Construção de um mapa genético integrado de ananaseiro (Ananas comosus (L.) Merril)

Authors: Sousa, Nelson Filipe Coelho Horta de;

Construção de um mapa genético integrado de ananaseiro (Ananas comosus (L.) Merril)

Abstract

O trabalho descrito nesta tese, teve como objectivo a constru o de um mapa gen tico integrado de ananaseiro (Ananas comosus (L.) Merrill), partindo de dois mapas previamente constru dos no Laborat rio Gen mica e Melhoramento Gen tico (mapa-F1 e mapa-F2). Numa primeira fase, procedeu-se clonagem e sequencia o de 42 marcadores moleculares (33 RAPD e 9 ISSR) do mapa F2 e sua transforma o em marcadores espec ficos de locus nico, SCAR e CAPS. O mapa foi reconstru do com 23 marcadores resultantes desta an lise. Numa segunda fase, com vista integra o do novo mapa F2 com o mapa F1, foram analisados na popula o F1 48 marcadores-DNA do mapa F2, dos quais: 39 marcadores espec ficos (SCAR, SSR, EST-SSR e CAPS) e 9 RAPDs. Desta an lise resultaram 22 novos marcadores espec ficos segregantes na popula o de mapeamento F1, dos quais 19 foram mapeados. O novo mapa integrado (F2+F1) constitu do por 781 marcadores-DNA (26 SSR, 13 EST-SSR, 25 SCAR, 8 CAPS, 115 RAPD, 21 ISSR, 573 AFLP) e pelo locus morfol gico da caracter stica “piping” agrupados em 36 grupos de liga o, dos quais, 25 grupos integrados (F2+F1) e 11 grupos F2 que n o integraram com grupos F1. Com um comprimento de 2155.7 cM e dist ncia m dia entre marcadores de 2.75 cM, o mapa cobre aproximadamente 87.3% do genoma do ananaseiro.

Country
Portugal
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Keywords

Mapa gen tico, SCAR, Bracteatus, Grupos de ligã o, CAPS, ESTSSR, Ananás, Comosus, SSR

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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