Abstract:
PREMISE OF THE STUDY:Plants adjust their phenology in response to seasonal cues experienced both by their parents and by themselves, and coordinating responses to these cues is necessary for expressing adaptive phenology. We investigated how cues are integrated across time to influence an important progeny phenotype, i.e., seed germination. METHODS:We used Arabidopsis thaliana to investigate how the photoperiod experienced by maternal parents and by progeny influences seed germination. We examined when maternal photoperiod effects on germination are imposed and how long they persist in progeny. KEY RESULTS:The photoperiod experienced by maternal plants more strongly influenced germination than the photoperiod experienced during seed imbibition. In addition, the photoperiod experienced at the prereproductive stage frequently influenced germination as strongly as that experienced during reproduction. In general, seeds from plants grown under short days had higher seed germination percentages than seeds from plants grown in longer days. These maternal effects diminished with after-ripening, but reappeared in seeds induced into secondary dormancy. CONCLUSIONS:We found no evidence that the effect of photoperiod systematically attenuates in proportion to the time that elapsed between the cue and the timing of seed germination. Moreover, more recently experienced cues did not override the effects of cues experienced previously. Instead, specific sequences of photoperiods experienced at the prereproductive and reproductive stages appear to influence germination behavior.
journal_name
Am J Botjournal_title
American journal of botanyauthors
Imaizumi T,Auge G,Donohue Kdoi
10.3732/ajb.1600389subject
Has Abstractpub_date
2017-04-01 00:00:00pages
516-526issue
4eissn
0002-9122issn
1537-2197pii
ajb.1600389journal_volume
104pub_type
杂志文章abstract:UNLABELLED:• PREMISE OF THE STUDY:Contact zones between diploids and their autopolyploid descendants represent a unique evolutionary venue for studying polyploid establishment, cytotype coexistence, and interactions. Here, we examine cytotype coexistence in a diploid-tetraploid contact zone of a perennial herb, Cardam...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.1500052
更新日期:2015-08-01 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
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journal_title:American journal of botany
pub_type: 杂志文章
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更新日期:2008-01-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.1600288
更新日期:2016-12-01 00:00:00
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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
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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
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journal_title:American journal of botany
pub_type: 杂志文章,评审
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更新日期:2011-03-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.1600177
更新日期:2016-09-01 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:2016-01-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.1200460
更新日期:2013-04-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.0900337
更新日期:2010-07-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.0900045
更新日期:2009-07-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.89.12.2017
更新日期:2002-12-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.1002/ajb2.1085
更新日期:2018-05-01 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::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:PREMISE OF THE STUDY:Anatomical and morphological features of Satanocrater were studied to test hypotheses of xeric adaptations in the genus, which is endemic to arid tropical Africa. These features, together with molecular data, were used to test the phylogenetic placement of Satanocrater within the large plant family...
journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.1100354
更新日期:2012-06-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.1000043
更新日期:2011-01-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.0800110
更新日期:2008-11-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.90.9.1313
更新日期:2003-09-01 00:00:00
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journal_title:American journal of botany
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doi:
更新日期:2001-09-01 00:00:00
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pub_type: 杂志文章
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更新日期:2014-10-01 00:00:00
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更新日期:2010-06-01 00:00:00
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journal_title:American journal of botany
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doi:
更新日期:2000-12-01 00:00:00
abstract::Serpentine soils are a model system for the study of plant adaptation, speciation, and species interactions. Serpentine soil is an edaphically stressful, low productivity soil type that hosts stunted vegetation and a spectacular level of plant endemism. One of the first papers on serpentine plant endemism was by Arthu...
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
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更新日期:2002-09-01 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:2018-10-01 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:2012-05-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.89.4.592
更新日期:2002-04-01 00:00:00