Hybridisation in a tropical seagrass genus, Halodule (Cymodoceaceae), inferred from plastid and nuclear DNA phylogenies
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Hybridization and polyploidy of an aquatic plant, Ruppia (Ruppiaceae), inferred from plastid and nuclear DNA phylogenies.
UNLABELLED PREMISE OF THE STUDY The monogeneric family Ruppiaceae is found primarily in brackish water and is widely distributed on all continents, many islands, and from subartic to tropical zones. Ruppia taxonomy has been confusing because of its simplified morphology yet high phenotypic plasticity and the existence of polyploidy and putative hybrids. This study addresses the current class...
متن کاملParallel evolution of glucosinolate biosynthesis inferred from congruent nuclear and plastid gene phylogenies.
The phytochemical system of mustard-oil glucosides (glucosinolates) accompanied by the hydrolytic enzyme myrosinase (beta-thioglucosidase), the latter usually compartmented in special myrosin cells, characterizes plants in 16 families of angiosperms. Traditional classifications place these taxa in many separate orders and thus imply multiple convergences in the origin of this chemical defense s...
متن کاملPhylogenetic relationships of Cranichidinae and Prescottiinae (Orchidaceae, Cranichideae) inferred from plastid and nuclear DNA sequences.
BACKGROUND AND AIMS Phylogenetic relationships of subtribes Cranichidinae and Prescottiinae, two diverse groups of neotropical terrestrial orchids, are not satisfactorily understood. A previous molecular phylogenetic study supported monophyly for Cranichidinae, but Prescottiinae consisted of two clades not sister to one another. However, that analysis included only 11 species and eight genera o...
متن کاملEvolution and biogeography of Centaurea section Acrocentron inferred from nuclear and plastid DNA sequence analyses.
BACKGROUND AND AIMS Section Acrocentron of the genus Centaurea is one of the largest sections of Centaurea with approx. 100 species. The geographic distribution, centred in the Mediterranean, makes it an excellent example for studies of the biogeographic history of this biodiversity-rich region. METHODS Plastid (trnH-psbA) and nuclear (ITS and ETS) DNA sequence analysis was used for phylogene...
متن کاملDevelopment of microsatellite markers for a tropical seagrass, Syringodium filiforme (Cymodoceaceae)1
UNLABELLED PREMISE OF THE STUDY A total of 17 polymorphic microsatellite markers were developed for the tropical Atlantic seagrass Syringodium filiforme (Cymodoceaceae), enabling analysis of population genetic structure in this species for the first time. • METHODS AND RESULTS The 17 primers amplified di- and trinucleotide repeats revealing two to eight alleles per locus among the South Fl...
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ژورنال
عنوان ژورنال: Telopea
سال: 2011
ISSN: 0312-9764,2200-4025
DOI: 10.7751/telopea20116015