Abstract:
UNLABELLED: PREMISE OF THE STUDY:Microsatellite markers were isolated and characterized in Mimulus ringens (Phrymaceae), a herbaceous wetland perennial, to facilitate studies of mating patterns and population genetic structure. • METHODS AND RESULTS:A total of 42 polymorphic loci were identified from a sample of 24 individuals from a single population in Ohio, USA. The number of alleles per locus ranged from two to nine, and median observed heterozygosity was 0.435. • CONCLUSIONS:This large number of polymorphic loci will enable researchers to quantify male fitness, patterns of multiple paternity, selfing, and biparental inbreeding in large natural populations of this species. These markers will also permit detailed study of fine-scale patterns of genetic structure.
journal_name
Am J Botjournal_title
American journal of botanyauthors
Nunziata SO,Karron JD,Mitchell RJ,Lance SL,Jones KL,Trapnell DWdoi
10.3732/ajb.1200180subject
Has Abstractpub_date
2012-12-01 00:00:00pages
e477-80issue
12eissn
0002-9122issn
1537-2197pii
ajb.1200180journal_volume
99pub_type
杂志文章abstract::The evolutionary history of maize (Zea mays subsp. mays) is of general interest because of its economic and scientific importance. Here we show that many cellular traits described previously in developing caryopses of maize are also seen in its wild progenitor teosinte (Zea mays subsp. parviglumis). These features, ea...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.0900059
更新日期:2009-10-01 00:00:00
abstract::Darwin's research on botany and plant physiology was a landmark attempt to integrate plant movements into a biological perspective of behavior. Since antiquity, people have sought to explain plant movements via mechanical or physiological forces, and yet they also constructed analogies between plant and animal behavio...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.0900220
更新日期:2009-12-01 00:00:00
abstract:PREMISE OF THE STUDY:A total of 38 polymorphic microsatellite loci of the Indian jujube (Ziziphus mauritiana), an economically important fruit tree, were developed to evaluate genetic diversity and aid in the identification of cultivars. METHODS AND RESULTS:The 38 microsatellite markers were isolated from the Indian j...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.1100500
更新日期:2012-05-01 00:00:00
abstract::Megaspore and microspore massulae of Paleoazolla patagonica gen. et sp. nov. are described from the Upper Cretaceous of La Colonia Formation, Chubut Province, Argentina. The new fern possesses megaspore complexes with three to four glochidiate floats attached directly to the megaspore; a columella-like structure appea...
journal_title:American journal of botany
pub_type: 杂志文章
doi:
更新日期:1999-08-01 00:00:00
abstract::Traditional farming communities frequently maintain high levels of agrobiodiversity, so understanding their agricultural practices is a priority for biodiversity conservation. The cultural origin of agave spirits (mezcals) from west-central Mexico is in the southern part of the state of Jalisco where traditional farme...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.0800176
更新日期:2009-02-01 00:00:00
abstract::The temperature dependence of freezing-induced xylem cavitation was studied in a Chihuahuan desert population of Larrea tridentata (Zygophyllaceae). Field measurements of wood temperature and xylem embolism were combined with anatomical studies and laboratory measurements of embolism in stem and root samples frozen un...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.89.12.1916
更新日期:2002-12-01 00:00:00
abstract:PREMISE OF THE STUDY:Virtually nothing is known about what actually happens during prolonged dormancy, the period during which significant proportions of geophyte populations do not sprout after seasonal dormancy but remain alive underground, to emerge again 1 or more years later. This study investigated the fate of pe...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.1000262
更新日期:2011-02-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.1500526
更新日期:2016-09-01 00:00:00
abstract:PREMISE OF THE STUDY:Climate cycles of the Quaternary have impacted plants at a global scale, leaving behind a complex genetic legacy. Species of the northern Rocky Mountains of North America were exposed to more uniform glacial patterns than the central and southern ranges, where synergistic relationships between temp...
journal_title:American journal of botany
pub_type: 杂志文章
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更新日期:2019-03-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
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更新日期:2014-02-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.1100306
更新日期:2011-12-01 00:00:00
abstract::During the crown-building phase, the mechanical architecture of the trunk of Aralia spinosa exhibits considerable ontogenetic variation. All trunks were tapered along their length, and taper was dependent on both ramet size and age; older, larger trunks were more tapered than younger, smaller trunks. Trunk specific gr...
journal_title:American journal of botany
pub_type: 杂志文章
doi:
更新日期:1999-12-01 00:00:00
abstract:PREMISE OF THE STUDY:Gravity has been a major force throughout the evolution of terrestrial organisms, and plants have developed exquisitely sensitive, regulated tropisms and growth patterns that are based on the gravity vector. The nullified gravity during spaceflight allows direct assessment of gravity roles. The mic...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.1200343
更新日期:2013-01-01 00:00:00
abstract::Clarkia (Onagraceae) is a genus of 42 annual species, mostly native to California, that has served as a model for many studies of plant evolutionary biology, particularly morphological, cytological, and genetic divergence; reproductive isolation; and speciation. Section Sympherica is the largest section with eight dip...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.90.2.284
更新日期:2003-02-01 00:00:00
abstract::Microelectrodes were used to study the oxygen concentration within Myrica gale L. nodules. Low oxygen concentrations were found only in the region of the mature, nitrogen-fixing endophyte, and appeared to correspond to clusters of infected host cells. The oxygen concentration in the remainder of the nodule was much hi...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.1002/j.1537-2197.1983.tb12432.x
更新日期:1983-01-01 00:00:00
abstract::Understanding the role of mother plants as pollen recipients in shaping mating patterns is essential for understanding the evolution of populations and in particular to predict the consequence of habitat fragmentation. Here, we investigated variation in mating patterns due to maternal phenotypic traits, phenological v...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.93.11.1650
更新日期:2006-11-01 00:00:00
abstract::We examined the function of floral traits associated with buzz pollination through studies of Rhexia virginica (Melastomataceae) in the Muskoka region of Ontario, Canada. Controlled pollinations demonstrated that the species is self-compatible, but dependent on insects for pollen transfer. Bumble bees made 82 and 90% ...
journal_title:American journal of botany
pub_type: 杂志文章
doi:
更新日期:1999-04-01 00:00:00
abstract::Dispersal is an important life history component. Seed settling velocity may be a useful surrogate for the measurement of dispersal ability in wind-dispersed plants, particularly those whose seeds have plumose dispersal structures. I measured settling velocities on seeds of eight species of Asteraceae, including annua...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.1002/j.1537-2197.1992.tb13702.x
更新日期:1992-10-01 00:00:00
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-...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.2007313
更新日期:2008-08-01 00:00:00
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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
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.1600278
更新日期:2017-01-01 00:00:00
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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
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.1002/ajb2.1008
更新日期:2018-01-01 00:00:00
abstract::Floral morphology of the 13 species of Moringa ranges from actinomorphic flowers with little hypanthium to highly zygomorphic flowers with well-developed hypanthia. Scanning electron and light microscopy were used to identify ontogenetic differences among two actinomorphic and eight zygomorphic species. All species sh...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.90.1.49
更新日期:2003-01-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract:PREMISE OF THE STUDY:Sex lability (i.e., gender diphasy) in plants is classically linked to the larger resource needs associated with the female sexual function (i.e., seed production) compared to the male function (i.e., pollen production). Sex lability in response to the environment is extensively documented in dioec...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.1600158
更新日期:2016-11-01 00:00:00
abstract::Contact forces are important in maintaining the twining habit of viny stems. A stem twining around a supporting pole puts itself into tension and uses a helical geometry to generate normal loads that are large relative to stem mass per unit length (Silk and Hubbard, Journal of Biomechanics 24(7):599-606, 1991). An ele...
journal_title:American journal of botany
pub_type: 杂志文章
doi:
更新日期:1997-08-01 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::The taxonomic richness of seed plants at different taxonomic levels was compared between temperate East Asia and North America at both continental and semi-continental scales. In each comparison, land area and latitude range were adjusted to a comparable level between the two continental regions. East Asia is signific...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.89.11.1818
更新日期:2002-11-01 00:00:00
abstract:PREMISE:Outcomes of species interactions, especially mutualisms, are notoriously dependent on environmental context, and environments are changing rapidly. Studies have investigated how mutualisms respond to or ameliorate anthropogenic environmental changes, but most have focused on nutrient pollution or climate change...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.1002/ajb2.1404
更新日期:2020-02-01 00:00:00