Abstract：
:Primarily known only by the edible fruits of Citrus, Rutaceae comprise a large (c. 160 genera and 1900 species), morphologically diverse, cosmopolitan family. Of its extraordinary array of secondary chemical compounds, many have medicinal, antimicrobial, insecticidal, or herbicidal properties. To assist with the much-needed suprageneric reclassification and with studies of evolution of chemical compounds and biogeographic history of the family, here we included sequence data (from two noncoding regions of the chloroplast genome-rps16 intron and trnL-trnF region) from 65 species in 59 genera (more than one third of those in the family) that represented all subfamilies and tribes and more genera of Toddalioideae and of neotropical groups than previous studies. Results confirmed that Cneorum, Ptaeroxylon, Spathelia, and Dictyoloma form a clade sister to the remaining Rutaceae, none of the subfamilies with more than one genus (except Aurantioideae) is monophyletic, and characters of the ovary and fruit are not reliable for circumscription of subfamilies. Furthermore, clades are better correlated with geographic distributions of the genera than with ovary and fruit characters. Circumscriptions of subfamilies and tribes (and some subtribes of Rutoideae) must be reevaluated. Results are discussed in light of geographic distributions, caryology, chemotaxonomy, and other molecular studies.
journal_name
Am J Botjournal_title
American journal of botanyauthors
Groppo M,Pirani JR,Salatino ML,Blanco SR,Kallunki JAdoi
10.3732/ajb.2007313subject
Has Abstractpub_date
2008-08-01 00:00:00pages
985-1005issue
8eissn
0002-9122issn
1537-2197pii
95/8/985journal_volume
95pub_type
杂志文章abstract：PREMISE OF THE STUDY:Large phylogenies can help shed light on macroevolutionary patterns that inform our understanding of fundamental processes that shape the tree of life. These phylogenies also serve as tools that facilitate other systematic, evolutionary, and ecological analyses. Here we combine genetic data from pu...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.1002/ajb2.1019
更新日期：2018-03-01 00:00:00
abstract：:Many foliar pathogens require free water to germinate; therefore, disease pressure should favor plants that are able to repel water. For a suite of 18 sympatric clover species (Trifolium and Medicago, Fabaceae), we evaluated leaf traits affecting leaf wetness and susceptibility to infection by the fungal pathogen Stem...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.90.6.857
更新日期：2003-06-01 00:00:00
abstract：:Molecular phylogenetic studies of seven plastid DNA regions were used to resolve circumscriptions at generic and infrageneric levels in subfamily Tillandsioideae of Bromeliaceae. One hundred and ten tillandsioid samples were analyzed, encompassing 10 genera, 104 species, and two cultivars. Two species of Bromelioideae...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.92.2.337
更新日期：2005-02-01 00:00:00
abstract：:Phylogenetic analyses of Meliaceae, including representatives of all four currently recognized subfamilies and all but two tribes (32 genera and 35 species, respectively), were carried out using DNA sequence data from three regions: plastid genes rbcL, matK (partial), and nuclear 26S rDNA (partial). Individual and com...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.90.3.471
更新日期：2003-03-01 00:00:00
abstract：:The genus Rosa has a complex evolutionary history caused by several factors, often in conjunction: extensive hybridization, recent radiation, incomplete lineage sorting, and multiple events of polyploidy. We examined the applicability of AFLP markers for reconstructing (species) relationships in Rosa, using UPGMA clus...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.95.3.353
更新日期：2008-03-01 00:00:00
abstract：:This study examined variation in two components of acorn production. Percentage of bearing ramets (stems) and number of acorns per bearing ramet were examined in five clonal oaks in three xeric habitats of south-central peninsular Florida in relation to ramet size within and between species and vegetative associations...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.89.1.124
更新日期：2002-01-01 00:00:00
abstract：:The selective maintenance of gynodioecy depends on the relative fitness of the male-sterile (female) and hermaphroditic morphs. Females may compensate for their loss of male fitness by reallocating resources from male function (pollen production and pollinator attraction) to female function (seeds and fruits), thus in...
journal_title：American journal of botany
pub_type： 杂志文章
doi：
更新日期：2000-05-01 00:00:00
abstract：UNLABELLED: PREMISE OF THE STUDY:Despite the ecological, economic, and cultural importance of the palm Mauritia flexuosa in Amazonia, knowledge of its reproductive biology is scarce. Previous observations of this species suggested beetles as the probable pollinator, but experimental work to confirm this hypothesis was...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.1200446
更新日期：2013-03-01 00:00:00
abstract：PREMISE OF THE STUDY:Discovery of cupulate ovules of Doylea tetrahedrasperma within a compact, compound seed cone highlights the rich diversity of fructification morphologies, pollination biologies, postpollination enclosure of seeds, and systematic diversity of Early Cretaceous gymnosperms. METHODS:Specimens were stu...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.1600030
更新日期：2016-05-01 00:00:00
abstract：PREMISE OF THE STUDY:We developed simple sequence repeat (SSR) markers from expressed sequence tags (ESTs) for Callitris columellaris sensu lato (s.l.) to elucidate population genetic structure and detect outlier loci by genome scan. METHODS AND RESULTS:mRNA from an individual seedling was subjected to cDNA synthesis ...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.1100276
更新日期：2011-12-01 00:00:00
abstract：:A well-integrated plant shows extensive carbohydrate translocation through the plant body. Even in highly integrated plants, however, translocation patterns will be sectorial if vascular tissue restricts carbon movement to sectors along stems. Both integration and sectorial translocation patterns are sensitive to plan...
journal_title：American journal of botany
pub_type： 杂志文章
doi：
更新日期：1998-12-01 00:00:00
abstract：:This study shows that structural data, when carefully examined, can provide valuable characters for delimiting monophyletic groups and can complement DNA with observable features to recognize and circumscribe taxa. In the angiosperm order Apiales, traditional classification has relied heavily (often exclusively) on fr...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.93.9.1357
更新日期：2006-09-01 00:00:00
abstract：PREMISE OF THE STUDY:Astragalus sect. Humillimi is distributed across the southwestern United States and contains two endangered taxa, A. cremnophylax var. cremnophylax and A. humillimus. The former was originally described from the South Rim of the Grand Canyon. Analysis of individuals discovered on the North Rim of t...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.1002/ajb2.1157
更新日期：2018-10-01 00:00:00
abstract：:The desert moss Syntrichia caninervis exhibits one of the most skewed sex ratios in the plant kingdom, with female individuals far outnumbering male individuals (exceeding 14♀:1♂). The "cost of sex hypothesis" derives from allocational theory and predicts that the sex which is most expensive should be the rarer sex. T...
journal_title：American journal of botany
pub_type： 杂志文章
doi：
更新日期：2000-11-01 00:00:00
abstract：:Prior field studies have shown that populations of forest herbs on relatively nutrient poor soils have higher vesicular-arbuscular mycorrhizal (VAM) infection intensity than plants on rich soils. However, the growth responses and ability to take up P against the soil nutrient gradient are often not linearly related to...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.1002/j.1537-2197.1990.tb13579.x
更新日期：1990-04-01 00:00:00
abstract：:Woody stems comprise a large biological carbon fraction and determine water transport between roots and leaves; their structure and function can influence both carbon and hydrological cycles. While angiosperm wood anatomy and density determine hydraulic conductivity and mechanical strength, little is known about inter...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.0900178
更新日期：2010-02-01 00:00:00
abstract：:Very little is known regarding how repetitive elements evolve inpolyploid organisms. Here we address this subject by fluorescent insitu hybridization (FISH) of 20 interspersed repetitive elements tometaphase chromosomes of the cotton AD-genome tetraploid Gossypiumhirsutum and its putative A- and D-genome diploid ances...
journal_title：American journal of botany
pub_type： 杂志文章
doi：
更新日期：1998-10-01 00:00:00
abstract：:Polyploid speciation is an ongoing, important source of angiosperm diversity. However, the barriers to polyploid speciation and mechanisms of establishment remain poorly understood for all but a few species. Several factors likely to have influenced tetraploid establishment, including barriers to triploid formation, c...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.92.11.1827
更新日期：2005-11-01 00:00:00
abstract：:Restriction fragment length polymorphism (RFLP) analysis of chloroplast (cp) DNA is a powerful tool for the study of microevolutionary processes in land plants, yet has not previously been applied to seaweed populations. We used cpDNA-RFLP, detected on Southern blots using labeled total plastid DNA, to search for intr...
journal_title：American journal of botany
pub_type： 杂志文章
doi：
更新日期：2001-07-01 00:00:00
abstract：PREMISE OF THE STUDY:Mixotrophy is a strategy whereby plants acquire carbon both through photosynthesis and heterotrophic exploitation of mycorrhizal fungi. In Euro-American Pyroleae species studied hitherto, heterotrophy levels vary according to species, sites of study, and possibly light conditions. We investigated m...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.1100546
更新日期：2012-07-01 00:00:00
abstract：PREMISE OF THE STUDY:Herbivory can affect a plant's fitness in a variety of ways, including modifying the biotic interactions of the plant. In particular, when herbivory influences floral display, we hypothesize that pollinator visitation will be altered accordingly. Here we studied the indirect effects of feeding by t...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.1500043
更新日期：2015-05-01 00:00:00
abstract：:The anther and ovule development of Camellia, Franklinia, and Schima (Theaceae, Camellioideae) were observed. The three genera share the following embryological traits: anther wall formation of basic type, tapetum of glandular type, walls of endothecial cells with secondary thickening, and production of pseudopollen g...
journal_title：American journal of botany
pub_type： 杂志文章
doi：
更新日期：1997-03-01 00:00:00
abstract：:We assessed the effects of local environment on survival, growth, and development in six clones (genotypes) of Vallisneria americana grown at five sites in the Huron-Erie Corridor. Detrimental effects of local environment on plant performance (rate of clonal growth, leaf and root production, surface area of leaves and...
journal_title：American journal of botany
pub_type： 杂志文章
doi：
更新日期：1997-12-01 00:00:00
abstract：:Oxalate crystals are very common in angiosperms, but few descriptions of their macropattern (crystal types, their tissue distribution, and development) exist. Because unusually large prismatic crystals and druses, are known from pomegranate, we traced the development of crystal macropattern in various-aged leaf sample...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.92.12.1935
更新日期：2005-12-01 00:00:00
abstract：:Breadfruit (Artocarpus altilis, Moraceae), a traditional starch crop in Oceania, has enjoyed legendary status ever since its role in the infamous mutiny aboard the H.M.S. Bounty in 1789, yet its origins remain unclear. Breadfruit's closest relatives are A. camansi and A. mariannensis. DNA fingerprinting data (AFLP, am...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.91.5.760
更新日期：2004-05-01 00:00:00
abstract：UNLABELLED:• PREMISE OF THE STUDY:Mountainous regions support high plant productivity, diversity, and endemism, yet are highly vulnerable to climate change. Historical records and model predictions show increasing temperatures across high elevation regions including the Southern Rocky Mountains, which can have a stron...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.1500156
更新日期：2015-08-01 00:00:00
abstract：PREMISE OF THE STUDY:Autopolyploidy, or whole-genome duplication within a species, leads to closely related cytotypes in one geographic location. One hypothesized mechanism by which autopolyploids become established is climatic niche divergence from their diploid progenitor. Here we tested this hypothesis in diploid, t...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.1002/ajb2.1161
更新日期：2018-10-01 00:00:00
abstract：UNLABELLED:• PREMISE OF THE STUDY:Two ovulate conifer cones, one of which is attached terminally to a short leafy shoot, reveal the presence of a new species of Hughmillerites in the Early Cretaceous Apple Bay flora of Vancouver Island, British Columbia, Canada. This ancient conifer expands the diversity of Cupressace...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.1400369
更新日期：2014-12-01 00:00:00
abstract：:The response of axillary buds to floral stimulus activity in stem pieces was examined in two near-isogenic cultivars of tobacco that differ in the recessive maryland mammoth (mm) allele, which confers short-day behavior. All axillary buds from day-neutral plants assayed on six-internode stem pieces made few nodes (les...
journal_title：American journal of botany
pub_type： 杂志文章
doi：
更新日期：1997-07-01 00:00:00
abstract：:The fossil record of aquatic flowering plants broadens our understanding of their former diversity and origins from terrestrial ancestors. This paper describes a floating aquatic monocot from 71 whole plants and several isolated leaf fragments from Upper Cretaceous oxbow lake sediments in the Dinosaur Park Formation, ...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.94.4.609
更新日期：2007-04-01 00:00:00
