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2010•Ludong University JournalRequires access

Genetic Polymorphisms in Seven Red Flower Phalaenopsis Species in China

Xueqing Liu

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Abstract

The genetic relationships of 7 popular Phalaenopsis red flower species are studied by RAPD technique.Using 3 ideal primers selected,39 DNA fractions were amplified,among which 27 fractions were polymorphic and the percentage of polymorphic bands was 69.2%.This suggested that the polymorphism was rich among the seven Phalaenopsis.The genetic distance was calculated and UPGMA cluster tree was constructed by popgen32 software,and the genetic relationship of 7 Phalaenopsis was determined.The results showed that RAPD markers represented a useful tool for distinguishing similar cultivar of Phalaenopsis and played an important role in Phalaenopsis breeding.

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What this paper is about

The genetic relationships of 7 popular Phalaenopsis red flower species are studied by RAPD technique.Using 3 ideal primers selected,39 DNA fractions were amplified,among which 27 fractions were polymorphic and the percentage of polymorphic bands was 69.2%.This suggested that the polymorphism was rich among the seven Phalaenopsis.The genetic distance was calculated and UPGMA cluster tree was constructed by popgen32 software,and the genetic relationship of 7 Phalaenopsis was determined.The results showed that RAPD markers represented a useful tool for distinguishing similar cultivar of Phalaenopsis and played an important role in Phalaenopsis breeding.

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Available abstract

The genetic relationships of 7 popular Phalaenopsis red flower species are studied by RAPD technique.Using 3 ideal primers selected,39 DNA fractions were amplified,among which 27 fractions were polymorphic and the percentage of polymorphic bands was 69.2%.This suggested that the polymorphism was rich among the seven Phalaenopsis.The genetic distance was calculated and UPGMA cluster tree was constructed by popgen32 software,and the genetic relationship of 7 Phalaenopsis was determined.The results showed that RAPD markers represented a useful tool for distinguishing similar cultivar of Phalaenopsis and played an important role in Phalaenopsis breeding.

Key concepts: Phalaenopsis, UPGMA, RAPD, Biology, Genetic relationship, Botany, Cultivar, Genetic distance

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