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文章名     作者     期刊名     摘要     卷     期         如果没有找到您所需要的文献，请点击 ——此处申请     共14条记录   DNA BARCODING WILL FREQUENTLY FAIL IN COMPLICATED GROUPS: AN EXAMPLE IN WILD POTATOES [作者：Spooner, DM,期刊：American Journal of Botany, 页码：1177-1189 , 文章类型： Review，,卷期：2009年96-6] DNA bat-coding ("barcoding") has been proposed as a rapid and practical molecular method to identify species via diagnostic variation in short orthologous DNA sequences from one or a few universal genomic regions. It see... DEVELOPMENT AND MORPHOLOGY OF FLOWERS AND INFLORESCENCES IN BALANOPHORA PAPUANA AND B. ELONGATA (BALANOPHORACEAE) [作者：Eberwein, R; Nickrent, DL; Weber, A,期刊：American Journal of Botany, 页码：1055-1067 , 文章类型： Article，,卷期：2009年96-6] Extreme modification and reduction in floral morphology presents an obstacle to determining the evolutionary relationships and homologies of the holoparasites in Balanophoraceae. Developing flowers and inflorescences of ... CONSTRAINTS ON LEAF STRUCTURAL TRAITS IN WETLAND PLANTS [作者：Vernescu, C; Ryser, P,期刊：American Journal of Botany, 页码：1068-1074 , 文章类型： Article，,卷期：2009年96-6] A plant species' ecology is associated with leaf economics, characterized, e.g., by photosynthetic rate, construction costs, and leaf life span. Specific leaf area (SLA, leaf area per leaf dry mass) is often considered t... SELENIUM PROTECTS THE HYPERACCUMULATOR STANLEYA PINNATA AGAINST BLACK-TAILED PRAIRIE DOG HERBIVORY IN NATIVE SELENIFEROUS HABITATS [作者：Freeman, JL; Quinn, CF; Lindblom, SD; Klamper, EM; Pilon-Smits, EAH,期刊：American Journal of Botany, 页码：1075-1085 , 文章类型： Article，,卷期：2009年96-6] Elemental hyperaccumulation in plants is hypothesized to represent it plant defense mechanism. The objective of this study was to determine whether selenium (Se) hyperaccumulation offers plants long-term protection front... TEMPERATURE REQUIREMENTS DIFFER FOR THE TWO STAGES OF SEED DORMANCY BREAK IN AEGOPODIUM PODAGRARIA (APIACEAE), A SPECIES WITH DEEP COMPLEX MORPHOPHYSIOLOGICAL DORMANCY [作者：Phartyal, SS; Kondo, T; Baskin, JM; Baskin, CC,期刊：American Journal of Botany, 页码：1086-1095 , 文章类型： Article，,卷期：2009年96-6] Only a few Studies have considered the possibility that low temperature requirements may vary among stages of dormancy break in seeds with morphophysiological dormancy (MPD). We show that this lack of consideration in pr... POLLINATION ECOLOGY OF THE HIGH LATITUDE, DIOECIOUS CLOUDBERRY (RUBUS CHAMAEMORUS; ROSACEAE) [作者：Brown, AO; McNeil, JN,期刊：American Journal of Botany, 页码：1096-1107 , 文章类型： Article，,卷期：2009年96-6] In a 3-yr study, we examined the pollinator guild and intersexual floral characteristics of the dioecious, perennial cloudberry (Rubus chamaemorus), which flowers in early spring. The findings contribute to our general U... A CLIMATIC AND TAXONOMIC COMPARISON BETWEEN LEAF LITTER AND STANDING VEGETATION FROM A FLORIDA SWAMP WOODLAND [作者：Dilcher, DL; Kowalski, EA; Wiemann, MC; Hinojosa, LF; Lott, TA,期刊：American Journal of Botany, 页码：1108-1115 , 文章类型： Article，,卷期：2009年96-6] One method to determine past climate has been the use of leaf morphological characteristics of fossil leaves quantified using modern climate and canopy leaf characteristics. Fossil assemblages are composed of abscised le... PATTERNS OF HYBRIDIZATION AND INTROGRESSION BETWEEN INVASIVE ULMUS PUMILA (ULMACEAE) AND NATIVE U. RUBRA [作者：Zalapa, JE; Brunet, J; Guries, RP,期刊：American Journal of Botany, 页码：1116-1128 , 文章类型： Article，,卷期：2009年96-6] Natural hybridization between introduced species and their native congeners occurs frequently and can create serious conservation concerns. Ulmus pumila (Siberian elm) is in introduced Asian elm species that has naturali... LOCAL ADAPTATION IN EUROPEAN POPULATIONS OF ARABIDOPSIS LYRATA (BRASSICACEAE) [作者：Leinonen, PH; Sandring, S; Quilot, B; Clauss, MJ; Mitchell-Olds, T; Agren, J; Savolainen, O,期刊：American Journal of Botany, 页码：1129-1137 , 文章类型： Article，,卷期：2009年96-6] We studied local adaptation to contrasting environments using an organism that is emerging as a model for evolutionary plant biology-the outcrossing, perennial herb Arabidopsis lyrata subsp. petraea (Brassicaceae). With ... FINE-SCALE GENETIC STRUCTURE ENHANCES BIPARENTAL INBREEDING BY PROMOTING MATING EVENTS BETWEEN MORE RELATED INDIVIDUALS IN WILD SOYBEAN (GLYCINE SOJA; FABACEAE) POPULATIONS [作者：Zhao, R; Xia, H; Lu, BR,期刊：American Journal of Botany, 页码：1138-1147 , 文章类型： Article，,卷期：2009年96-6] Outcrossing between genetically distant individuals in a plant population enhances allelic heterozygosity-an important source for genetic diversity and adaptive evolution. Fine-scale spatial genetic structure (FSGS) can ... REPRODUCTIVE IMPLICATIONS OF COMBINED AND SEPARATE SEXES IN A TRIOECIOUS POPULATION OF OPUNTIA ROBUSTA (CACTACEAE) [作者：del Castillo, RF; Argueta, ST,期刊：American Journal of Botany, 页码：1148-1158 , 文章类型： Article，,卷期：2009年96-6] Opuntia robusta has hermaphroditic, dioecious. and trioecious populations. To enhance our understanding of this breeding system diversity, we compared the reproductive output of males, females, and hermaphrodites in a tr... OVULE NUMBER PER FLOWER IN A WORLD OF UNPREDICTABLE POLLINATION [作者：Burd, M; Ashman, TL; Campbell, DR; Dudash, MR; Johnston, MO; Knight, TM; Mazer, SJ; Mitchell, RJ; Steets, JA; Vamosi, JC,期刊：American Journal of Botany, 页码：1159-1167 , 文章类型： Article，,卷期：2009年96-6] The number of ovules per flower varies over several orders of magnitude among angiosperms. Here we consider evidence that stochastic uncertainty in pollen receipt and Ovule fertilization has been a selective factor in th... EVOLUTION OF AUTONOMOUS SELFING ACCOMPANIES INCREASED SPECIALIZATION IN THE POLLINATION SYSTEM OF SCHIZANTHUS (SOLANACEAE) [作者：Perez, F; Arroyo, MTK; Armesto, JJ,期刊：American Journal of Botany, 页码：1168-1176 , 文章类型： Article，,卷期：2009年96-6] The co-occurrence of elaborate flowers visited by specific groups of pollinators and capacity for autonomous selfing in the same plant species has puzzled evolutionary biologists since the time of Charles Darwin. To exam... GENETIC DIVERSITY AND STRUCTURE IN SEMIWILD AND DOMESTICATED CHILES (CAPSICUM ANNUUM; SOLANACEAE) FROM MEXICO [作者：Aguilar-Melendez, A; Morrell, PL; Roose, ML; Kim, SC,期刊：American Journal of Botany, 页码：1190-1202 , 文章类型： Article，,卷期：2009年96-6] The chile of Mesoamerica, Capsicum annuum, is one of five domesticated chiles in the Americas. Among the chiles, it varies the most in size, form, and color of its fruits. Together with maize, C. annuum is one of the pri...