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  • Botany 2010 - Abstract Search
    E Longitudes NDBR is one among natural World Heritage sites As elsewhere biodiversity is changing at an unprecedented rate in the Himalayan ecosystems as a complex response to several human and climate induced changes in environment which make them important candidate for immediate action However very few attempts have been made to detect such changes in conservation areas of the Himalaya Also there has been no effort to utilize change datasets for developing prediction scenarios which may act as base line for developing alternative strategies for long term management Realizing this gap repeat studies were conducted in NDBR for generating dataset on community assemblages regeneration behavior and plant species responses The use of phytosociological datasets of two time period i e 1988 and 2008 facilitated analysis of trends of changes in forest communities Within a representative watershed of NDBR Pindari 30 forest stands in 11 different communities were identified The analysis revealed considerable changes in compositional features particularly in sapling and seedling layers In most of the communities the datasets for richness density and diversity reflects a positive response in terms of increase Seedling richness and density which showed significant decrease p Broader Impacts The change assessment studies would be

    Original URL path: http://2010.botanyconference.org/engine/search/index.php?func=detail&aid=496 (2016-02-01)
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  • Botany 2010 - Abstract Search
    Ericaceae related to Pieris Agarista and Craibiodendron Lyonieae Most of the 36 species of Lyonia occur in the Greater Antilles and some occur in eastern US and in eastern Asia This study investigates the evolutionary relationships of several species of Lyonia from both Cuba and Hispaniola to address their relationships in the context of their geographic distribution We used one nuclear region ITS and one chloroplast region matK to address the relationships among the sampled species Seventeen species were sampled including 5 endemic to Cuba and 6 endemic to Hispaniola Three species of Lyonia from the southeastern US and one species from China were also included in the study The group was rooted with Pieris phillyreifolia We aligned the data with MAFFT and used the maximum likelihood software RAxML to construct phylogenetic trees Analysis of each data set was performed separately and because there was no conflict between the resulting trees the data were combined and analyzed in a single matrix Results suggest a complex history for Lyonia in the Caribbean Most of the species from Hispaniola form a clade but species from Cuba are not closely related to each other Broader Impacts Log in to add this item to

    Original URL path: http://2010.botanyconference.org/engine/search/index.php?func=detail&aid=415 (2016-02-01)
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  • Botany 2010 - Abstract Search
    of Miconia Tococa and Clidemia Pollination studies have confirmed bees as pollinators which obtain the pollen reward through buzzing although other pollinators are suspected in some species Flowers in the Miconieae always have a radially symmetric perianth but some of them have secondary bilateral symmetry arising from differential organization of the stamens and the style and their relative position In addition floral parts in the tribe vary in color combinations creating different visual patterns Lastly the relative length of styles and anthers also vary among species but not so within species Using photographs of live plants at anthesis in the field we coded characters relative to petal color and position stamen color position length and inflection of the filament and relative length position and inflection of the style In total we scored close to 300 species Secondary bilateral symmetry can be achieved in many different ways depending on the relative position of the androecium and the position of the style Herkogamy spatial separation of anthers and stigma is often associated with secondary bilateral symmetry but can also be present in radially symmetric flowers due to differences in the relative size of anthers and style or how anthers are spread at

    Original URL path: http://2010.botanyconference.org/engine/search/index.php?func=detail&aid=618 (2016-02-01)
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  • Botany 2010 - Abstract Search
    and high mortality of seedlings Recently Chung et al Ann Missouri Bot Gard 97 1 10 2010 reported that S randaiense is hermaphroditic and protogynous with a possible sexual system of synchronous dichogamy rejecting previous accounts claiming polygamy for the species To test this proposition that may partially explain its unpredictable seed yield the reproductive biology of S randaiense was investigated during its flowering seasons in 2009 and 2010 With the aid of three scaffold observatories in Chilanshan areas the sexual phases of 165 inflorescence buds of four trees were recorded and tracked for their entire flowering periods Photographs were also taken at a one hour interval for selected inflorescences to record the changes of sexual phase and flower visitors Surprisingly although our observations confirm the protogyny in S randaiense flowers within an individual tree did not change their sexual phase synchronously Instead the bright and flesh white stigma signifying the female phase of each flower lasted for less than 4 days and then became brown and wilted following by the male phase For each tree female phase flowers were present for 8 to 13 days and at the 7th day portion of male phase flowers exceeded those of female

    Original URL path: http://2010.botanyconference.org/engine/search/index.php?func=detail&aid=486 (2016-02-01)
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  • Botany 2010 - Abstract Search
    four molecular markers rpl32 spacer psbj petA intergenic intron regions 1 and 2 and internal transcribed spacer ITS provided little resolution among species perhaps indicating recent evolutionary divergence Canonical Discriminant Analyses using morphological data allowed for recognition of three distinct taxa Manekia incurva Manekia obtusa and Manekia urbanii Significant discriminating characteristics included petiole vagination number of main veins leaf apex shape leaf base shape gland presence and bract ciliation Broader

    Original URL path: http://2010.botanyconference.org/engine/search/index.php?func=detail&aid=458 (2016-02-01)
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  • Botany 2010 - Abstract Search
    1 A taxonomic review of Korean native Citrus L Rutaceae Twelve taxa of Korean native Citrus were reviewed taxonomically For this study above 60 morphological characters in tree size habit and persistence shoots leaves flowers flowering season and fruits etc were examined All of 12 Korean native Citrus were evergreen shrubs or small trees with spines at axil or not The leaves of them were 1 foliolate or simple petiole usually articulated with base of leaf blade usually conspicuously winged Leaf blade was sub leathery to leathery and its margin was crenulate or rarely entire and flowers were axillary hermaphrodite and solitary Fruit was a hesperidium with sarcocarp segments of pulp vesicles Seed coat was smooth or ridged Chromosome numbers were 2n 18 in all members Key to the taxa including description and illustration of each taxon were provided This research was surported by a grant no 052 081 070 from the Development of identification and classification systems of plant resources of the Korean Peninsula Flora of Korea Project by the Ministry of Environ of the Korean Government Broader Impacts Log in to add this item to your schedule 1 Korea Forest Research Institute Warm Temperate Forest Research Center Seogwipo

    Original URL path: http://2010.botanyconference.org/engine/search/index.php?func=detail&aid=164 (2016-02-01)
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  • Botany 2010 - Abstract Search
    2010 Home Login Abstract Detail Ecological Section Chang Hsiaochi 1 Snow Allison 1 A test for crop traits linked to a reciprocal translocation of cultivated and wild radishes implications for weed evolution following hybridization To be updated Broader Impacts Log in to add this item to your schedule 1 The Ohio State University Evolution Ecology and Organismal Biology 318 W 12th Avenue Columbus OH 43210 USA Keywords wild radish Raphanus

    Original URL path: http://2010.botanyconference.org/engine/search/index.php?func=detail&aid=682 (2016-02-01)
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  • Botany 2010 - Abstract Search
    in the genus Solanum Phylogenetic study of Solanum subgenus Leptostemonum The genus Solanum Solanaceae is one of the largest and most economically important plant genera One of the largest groups within the genus is the Leptostemonum clade with ca 350 450 species This clade is also known as the spiny solanums due to the presence of epidermal prickles and it basically conforms to Solanum subgenus Leptostemonum of traditional classifications Here we present a phylogeny of the spiny solanums with a goal of examining the monophyly of sections recognized within this large clade Of particular interest is the Micracantha clade a group of 12 species that has challenged taxonomists We clarify the species composition of this clade and further investigate specific relationships within the group using Conserved Orthologous Set COSII markers We examine the utility of these newly developed markers for inferring relationships within the Micracantha clade These efforts help to define monophyletic groups within the large Leptostemonum clade and will aid in taxonomic revisions of groups within Solanum subgenus Leptostemonum Broader Impacts Log in to add this item to your schedule Related Links Solanaceae Source 1 University of Utah Department of Biology 257 S 1400 E Salt Lake City Utah

    Original URL path: http://2010.botanyconference.org/engine/search/index.php?func=detail&aid=102 (2016-02-01)
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