Species separation of Taxus baccata, T. canadensis, and T. cuspidata (Taxaceae) and origins of their reputed hybrids inferred from RAPD and cpDNA data

Collins, Dennis; Mill, R. R.; Möller, Michael

doi:10.3732/ajb.90.2.175

Cited by 56 publications

(35 citation statements)

References 27 publications

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“…Hybridization is an important factor in the evolution of many plant taxa (Yang et al 2000;Tsukaya 2002;Collins et al 2003;Gonzalez-Rodriguez et al 2004). It can create evolutionary novelties that promote adaptive evolution and speciation (Arnold 1996;Barton 2001).…”

Section: Introductionmentioning

confidence: 98%

Natural hybridization origin of Rhododendron agastum (Ericaceae) in Yunnan, China: inferred from morphological and molecular evidence

Zhang

Gao

et al. 2007

J Plant Res

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The natural hybridization that occurs between two sympatric species of Rhododendron subgenus Hymenanthes in Yunnan, China, was investigated. The assumed parents, Rhododendron delavayi Franch. and R. decorum Franch., are morphologically distinct, and the putative hybrid species, R. agastum Balf. f. et W. W. Smith, has an intermediate morphology. We used the main morphological characters, sequences of the nuclear ribosomal DNA ITS region, and the chloroplast DNA trnL-F intronspacer to analyze the three species, and compared these morphological and molecular data with an artificial hybrid between R. decorum (female symbol) x R. delavayi (male symbol). From the results, we conclude that R. agastum is a natural hybrid between a female R. delavayi and a male R. decorum.

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Section: Introductionmentioning

confidence: 98%

Natural hybridization origin of Rhododendron agastum (Ericaceae) in Yunnan, China: inferred from morphological and molecular evidence

Zhang

Gao

et al. 2007

J Plant Res

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“…The same polymorphism patern was observed in jatropha, podophyllum and apricot [59][60][61]. RAPD also provides marker even for cultivars identiication [62] determining hybridity among the sexual cross made intentionally to exploit the genetic variability [63,64] and germplasm evaluation [31].…”

Section: Discussionmentioning

confidence: 66%

Evaluation of Genetic Diversity in Chlorophytum borivilianum (Santp. and Fernan.) Using Molecular Markers: An Endangered Medicinal Plant

Samantaray¹,

Ngangkham²

2017

Active Ingredients From Aromatic and Medicinal Plants

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Chlorophytum borivilianum is a traditional medicinal plant distributed throughout the tropics and subtropics. In the present investigation, RAPD and ISSR analyses were used to assess the genetic diversity among 21 accessions collected from diferent geographical regions of India using 20 RAPD primers and 6 ISSR primers. RAPD and ISSR primers revealed 92.26% and 82.76% polymorphism, respectively. Similarity in coeicient values ranged from 0.321 to 0.707 for RAPD and 0.363 to 0.846 for ISSR markers. The dendrogram developed by RAPD and ISSR marker-based analysis grouped the 21 accessions into diferent clusters. Mantel test employed for detection of goodness of it established the cophenetic correlation value for both the primer systems and it was observed to be signiicant. Clustering of accessions within groups was also similar based on RAPD-and ISSR-derived dendrograms. In our study, both marker systems were similar except for the percentage polymorphism which was found to be greater using RAPD, thus indicating the greater efectiveness of RAPD primers for estimating genetic variation of C. borivilianum.

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“…In a study carried out by Collins et al (2003), species-specific chloroplast markers developed by analysing restriction digestions of PCRamplified trnL-F fragments confirmed the direction of crosses that generated putative hybrids of three species of Taxus (Taxaceae), namely T. baccata, T. canadensis and T. cuspidate. Likewise, Panda et al (2003) developed PCR-RFLP markers that differentiated clearly between sweet cherry (Prunus avium) and sour cherry (P. cerasus) using six chloroplast universal primer pairs.…”

Section: Mode Of Inheritancementioning

confidence: 92%

Chloroplast-specific universal primers and their uses in plant studies

Haider¹

2011

Biologia plant.

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Universal (consensus) primers are those primers that have the ability to amplify the targeted region of DNA across a broad range of individuals in a certain group of organisms. In plants, such universal primers have been designed to target regions in the nuclear, mitochondrial or chloroplast genome. Among these three genomes, the chloroplast genome is the most suited for the design of consensus primers due to the lower rate of evolution and hence conservation of gene order and sequence of the genome among the different plant species compared to the other two genomes. Several molecular studies in plants have developed and used chloroplast-specific universal primers. In this review, I present some examples of the nuclear DNA-specific universal primers and discuss the features of the chloroplast DNA that make it the most suited for the design of such primers. I then refer to all chloroplast-specific primers developed so far and provide some examples of molecular studies and applications that made use of them.

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Species separation of Taxus baccata, T. canadensis, and T. cuspidata (Taxaceae) and origins of their reputed hybrids inferred from RAPD and cpDNA data

Cited by 56 publications

References 27 publications

Natural hybridization origin of Rhododendron agastum (Ericaceae) in Yunnan, China: inferred from morphological and molecular evidence

Natural hybridization origin of Rhododendron agastum (Ericaceae) in Yunnan, China: inferred from morphological and molecular evidence

Evaluation of Genetic Diversity in Chlorophytum borivilianum (Santp. and Fernan.) Using Molecular Markers: An Endangered Medicinal Plant

Chloroplast-specific universal primers and their uses in plant studies

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