Abstract：
:The regulation of floral organ identity was investigated using a forward genetic approach in five floral homeotic mutants of Thalictrum, a noncore eudicot. We hypothesized that these mutants carry defects in the floral patterning genes. Mutant characterization comprised comparative floral morphology and organ identity gene expression at early and late developmental stages, followed by sequence analysis of coding and intronic regions to identify transcription factor binding sites and protein-protein interaction (PPI) motifs. Mutants exhibited altered expression of floral MADS-box genes, which further informed the function of paralogs arising from gene duplications not found in reference model systems. The ensuing modified BCE models for the mutants supported instances of neofunctionalization (e.g., B-class genes expressed ectopically in sepals), partial redundancy (E-class), or subfunctionalization (C-class) of paralogs. A lack of deleterious mutations in the coding regions of candidate floral MADS-box genes suggested that cis-regulatory or trans-acting mutations are at play. Consistent with this hypothesis, double-flower mutants had transposon insertions or showed signs of transposon activity in the regulatory intron of AGAMOUS (AG) orthologs. Single amino acid substitutions were also found, yet they did not fall on any of the identified DNA binding or PPI motifs. In conclusion, we present evidence suggesting that transposon activity and regulatory mutations in floral homeotic genes likely underlie the striking phenotypes of these Thalictrum floral homeotic mutants.
journal_name
Evol Devjournal_title
Evolution & developmentauthors
Martínez-Gómez J,Galimba KD,Coté EY,Sullivan AM,Di Stilio VSdoi
10.1111/ede.12357subject
Has Abstractpub_date
2020-11-12 00:00:00eissn
1520-541Xissn
1525-142Xpub_type
杂志文章abstract：:Ontogeny often provides the most compelling evidence for primary homology in evolutionary developmental studies and is critical to interpreting complex structures in a phylogenetic context. As an example of this, we document the ontogenetic development of the caudal skeleton of Caranx crysos by examining a series of c...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2007.00148.x
更新日期：2007-03-01 00:00:00
abstract：:The highly specialized cephalopod cardiovascular system has long been considered a valuable model for understanding the evolution of circulatory systems. Despite the number of studies devoted to this topic, the developmental regulatory mechanisms remain largely unexplored. Here, we focus on the vascular endothelial gr...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2009.00388.x
更新日期：2010-01-01 00:00:00
abstract：:Jaw shedding and replacement of Diopatra aciculata (Onuphidae, Eunicida), by the same process as arthropod molting, involving apolysis and ecdysis, is described here. These observations suggest that molting has either evolved convergently in eunicidan polychaetes and ecdysozoans or it was present in the last ecdysozoa...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2005.05039.x
更新日期：2005-07-01 00:00:00
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journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2010.00453.x
更新日期：2011-01-01 00:00:00
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journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1046/j.1525-142x.1999.99019.x
更新日期：1999-11-01 00:00:00
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journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12287
更新日期：2019-05-01 00:00:00
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journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2008.00254.x
更新日期：2008-07-01 00:00:00
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journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2009.00376.x
更新日期：2009-11-01 00:00:00
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journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1046/j.1525-142x.2003.03063.x
更新日期：2003-11-01 00:00:00
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journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12110
更新日期：2015-01-01 00:00:00
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journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1046/j.1525-142x.2000.00055.x
更新日期：2000-05-01 00:00:00
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journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2008.00224.x
更新日期：2008-03-01 00:00:00
abstract：:The ossification sequence of Myiopsitta monachus was determined. Myiopsitta has a similar sequence to other altricial birds, with delayed skeletons compared to precocial species. The hindlimbs ossify before the forelimbs, a condition that could be linked to altriciality. To determine the stability of the sequences of ...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12211
更新日期：2017-01-01 00:00:00
abstract：:Reproductive division of labor is one of the crucial features in social insects, however, the developmental mechanisms leading to modifications in the reproductive apparatus of workers are still not very clear. Ants show a remarkable diversity in the morphological specialization of the worker's reproductive apparatus,...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12182
更新日期：2016-03-01 00:00:00
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journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12246
更新日期：2018-01-01 00:00:00
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journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1046/j.1525-142x.2001.01050.x
更新日期：2001-11-01 00:00:00
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journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2010.00415.x
更新日期：2010-05-01 00:00:00
abstract：:The phylogenetic positions of frogs, salamanders, and caecilians have been difficult to establish. Data matrices based primarily on Paleozoic taxa support a monophyletic origin of all Lissamphibia but have resulted in widely divergent hypotheses of the nature of their common ancestor. Analysis that concentrates on the...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1046/j.1525-142x.2003.03038.x
更新日期：2003-05-01 00:00:00
abstract：:The proximo-distal axis of the arthropod leg is patterned by mutually antagonistic developmental expression domains of the genes extradenticle, homothorax, dachshund, and Distal-less. In the deutocerebral appendages (the antennae) of insects and crustaceans, the expression domain of dachshund is frequently either abse...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12005
更新日期：2012-11-01 00:00:00
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journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2007.00194.x
更新日期：2007-11-01 00:00:00
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journal_title：Evolution & development
pub_type： 杂志文章,评审
doi：10.1111/ede.12335
更新日期：2020-11-01 00:00:00
abstract：:The origin of the turtle plastron is not known, but these nine bones have been homologized to the exoskeletal components of the clavicles, the interclavicular bone, and gastralia. Earlier evidence from our laboratory showed that the bone-forming cells of the plastron were positive for HNK-1 and PDGFRalpha, two markers...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2007.00159.x
更新日期：2007-05-01 00:00:00
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journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2008.00267.x
更新日期：2008-09-01 00:00:00
abstract：:Repeated tooth initiation occurs often in nonmammalian vertebrates (polyphyodontism), recurrently linked with tooth shedding and in a definite order of succession. Regulation of this process has not been genetically defined and it is unclear if the mechanisms for constant generation of replacement teeth (secondary den...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2006.00118.x
更新日期：2006-09-01 00:00:00
abstract：:When approaching the study of terminal growth and segmentation, comparative morphology provides an important guide to formulate questions. There are often problems in unambiguously identifying the axis along which we wish to study terminal (often, actually, subterminal) growth, especially when the trunk axis is poster...
journal_title：Evolution & development
pub_type： 杂志文章,评审
doi：10.1111/j.1525-142X.2005.05060.x
更新日期：2005-11-01 00:00:00
abstract：:This essay recapitulates major paths followed by the Russian tradition of what we refer to today as evolutionary developmental biology ("evo-devo"). The article addresses several questions regarding the conceptual history of evolutionary embryological thought in its particularly Russian perspective: (1) the assertion ...
journal_title：Evolution & development
pub_type： 历史文章,杂志文章
doi：10.1111/j.1525-142X.2011.00518.x
更新日期：2012-01-01 00:00:00
abstract：:Eye and head morphology vary considerably among insects and even between closely related species of Drosophila. Species of the D. melanogaster subgroup, and other Drosophila species, exhibit a negative correlation between eye size and face width (FW); for example, D. mauritiana generally has bigger eyes composed of la...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12027
更新日期：2013-07-01 00:00:00
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journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2009.00343.x
更新日期：2009-07-01 00:00:00
abstract：:Reef-building scleractinian corals widely engage in symbiotic relationships with Symbiodinium dinoflagellates (zooxanthellae), which reside inside cells of the gastrodermis. In most cases, sexually produced larvae acquire their symbionts from the environment in the early developmental stages preceding settlement; howe...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2007.00173.x
更新日期：2007-07-01 00:00:00
abstract：:Homeobox transcription factors are commonly involved in developmental regulation in diverse eukaryotes, including plants, animals, and fungi. The origin of novel homeobox genes is thought to have contributed to many evolutionary innovations in animals. We perform a molecular phylogenetic analysis of cnox2, the best st...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1046/j.1525-142x.2003.03041.x
更新日期：2003-07-01 00:00:00
