Morphogenetic lability of the Ruppia maritima (Ruppiaceae, Alismatales) reproductive organs: From two lateral flowers to a terminal flower

Morphogenetic lability of the Ruppia maritima (Ruppiaceae, Alismatales) reproductive organs: From... Flowers of Ruppia are usually arranged into an open two-flowered spike, but sometimes two lateral flowers are congenitally united with each other forming a terminal flower-like structure. This deviation from the morphogenesis of reproductive structures typical of Ruppia resembles those described in well-studied mutants of the model organisms of developmental genetics, such as Arabidopsis and Antirrhinum. A study of Ruppia allows the morphogenetic lability of this trait to be traced in natural populations. These data are important for understanding the evolutionary transition from open to closed inflorescences. This paper describes the first data on the frequencies of terminal flower-like structures in natural populations of Ruppia maritima as well as on the specific features of their morphogenesis. The vascular supply in the inflorescences with free and fused flowers is also compared for the first time. It has been demonstrated that the frequency of inflorescences with fused flowers considerably varies between different populations. The data on variation in the number of organs in flowers of plants from different populations suggest that an increased size of floral primordia is a factor enhancing their fusion into a joint primordium of the terminal structure. The vascular system of the R. maritima inflorescences with united flowers is similar to the vascular system of a single flower; moreover, nothing contradicts the hypothesis on a terminal position of this structure. The R. maritima inflorescences with united flowers frequently contain transversal stamens with an inverted polarity. Presumably, this is the first case of recorded inversion of relative polarity of stamens and carpels in angiosperms. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

Morphogenetic lability of the Ruppia maritima (Ruppiaceae, Alismatales) reproductive organs: From two lateral flowers to a terminal flower

Loading next page...
 
/lp/springer_journal/morphogenetic-lability-of-the-ruppia-maritima-ruppiaceae-alismatales-IYVmsmzSJO
Publisher
Springer Journals
Copyright
Copyright © 2011 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Animal Anatomy / Morphology / Histology; Developmental Biology
ISSN
1062-3604
eISSN
1608-3326
D.O.I.
10.1134/S1062360411040084
Publisher site
See Article on Publisher Site

Abstract

Flowers of Ruppia are usually arranged into an open two-flowered spike, but sometimes two lateral flowers are congenitally united with each other forming a terminal flower-like structure. This deviation from the morphogenesis of reproductive structures typical of Ruppia resembles those described in well-studied mutants of the model organisms of developmental genetics, such as Arabidopsis and Antirrhinum. A study of Ruppia allows the morphogenetic lability of this trait to be traced in natural populations. These data are important for understanding the evolutionary transition from open to closed inflorescences. This paper describes the first data on the frequencies of terminal flower-like structures in natural populations of Ruppia maritima as well as on the specific features of their morphogenesis. The vascular supply in the inflorescences with free and fused flowers is also compared for the first time. It has been demonstrated that the frequency of inflorescences with fused flowers considerably varies between different populations. The data on variation in the number of organs in flowers of plants from different populations suggest that an increased size of floral primordia is a factor enhancing their fusion into a joint primordium of the terminal structure. The vascular system of the R. maritima inflorescences with united flowers is similar to the vascular system of a single flower; moreover, nothing contradicts the hypothesis on a terminal position of this structure. The R. maritima inflorescences with united flowers frequently contain transversal stamens with an inverted polarity. Presumably, this is the first case of recorded inversion of relative polarity of stamens and carpels in angiosperms.

Journal

Russian Journal of Developmental BiologySpringer Journals

Published: Aug 3, 2011

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off