Floral development in Thermopsis turcica, an unusual multicarpellate papilionoid legume

Sinjushin, Andrey; Tekdal, Dilek; Ciftci, Cem; Çetiner, Selim

doi:10.1007/s00606-018-1491-6

Cited by 4 publications

(11 citation statements)

References 30 publications

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“…This indicates that polymerous (multicarpellate) gynoecia arise through different developmental mechanisms in these two genera. As it was hypothesized previously, three carpels in the flower of T. turcica may initiate in a sequential order along a spiral [3]. In L. angustifolius, an anomalous proliferation of FM gives a possibility to initiate more carpels, and their asynchronous development indicates that they arise on different levels, the first always being the abaxial one (Figure 2K).…”

Section: A Multicarpellate State In Fasciated Mutant Results From Proliferation Of Floral Meristem (Fm)supporting

confidence: 57%

“…This species normally develops three (rarely more or fewer) carpels per flower but its androecium remains typical papilionoid, composed of two pentamerous whorls. A paper [3] reported no variations in stamen number. For this work, 15 flowers of T. turcica (see [3] for details on origin of material) were additionally dissected, and their androecia appeared to be normal.…”

Section: A Multicarpellate State In Fasciated Mutant Results From Proliferation Of Floral Meristem (Fm)mentioning

confidence: 93%

“…A paper [3] reported no variations in stamen number. For this work, 15 flowers of T. turcica (see [3] for details on origin of material) were additionally dissected, and their androecia appeared to be normal. Oppositely, androecium is the least stable part in fasciated flowers of L. angustifolius.…”

Section: A Multicarpellate State In Fasciated Mutant Results From Proliferation Of Floral Meristem (Fm)mentioning

confidence: 93%

“…In earlier work, floral development in an unusual multicarpellate T. turcica Kit Tan, Vural & Küçük. was documented [3]. This species normally develops three (rarely more or fewer) carpels per flower but its androecium remains typical papilionoid, composed of two pentamerous whorls.…”

Section: A Multicarpellate State In Fasciated Mutant Results From Proliferation Of Floral Meristem (Fm)mentioning

confidence: 99%

“…Plants were grown on an experimental plot at MSU Zvenigorod Biological Station (Western Moscow region) during summer seasons of 2016-2018. For scanning electron microscopy (SEM) studies, shoot apices and floral buds were collected at the preanthetic stage, fixed and stored in 70% ethanol, then dissected under a stereomicroscope and prepared for SEM according to the previously described protocol [3]. SEM images were taken with the microscope CamScan-S2 (Cambridge University, UK) in a Secondary Electron Image (SEI) regime with an accelerating voltage of 20 kV.…”

Section: Methodsmentioning

confidence: 99%

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Interaction between Floral Merism and Symmetry: Evidence from Fasciated Mutant of Lupinus angustifolius L. (Leguminosae)

2019

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A significant diversity of flower structure in angiosperms is defined by few parameters, among which one may list floral merism and symmetry as the most important. However, observation of normal variation in different taxa indicates that high floral merism (more than six organs) is very rarely associated with a monosymmetry. Precise mechanisms underlying this tendency, as well as the mode of interaction between regulatory pathways of floral symmetry and merism, remain unidentified. In this work, we observed the floral ontogeny in normal plants of Lupinus angustifolius L. (Leguminosae), described the floral structure and its variations in fasciated mutant. Our results suggest that monosymmetry is regulated independently from the floral merism, so three types of petals differentiate properly even in flowers with an anomalously high number of organs. However, the adaxial floral domain is the most stable floral part, which is the least susceptible to the fluctuations of merism. This means that some genes responsible for the development of the adaxial flower domain may additionally stabilize it and hence prevent fluctuations of merism in the adaxial domain. The monosymmetry in Leguminosae is a character connected with pollination by insects and requires a precise interaction between all floral parts. That is why fluctuations, which impair this interaction and symmetry, may decrease the pollination efficiency.

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Section: A Multicarpellate State In Fasciated Mutant Results From Proliferation Of Floral Meristem (Fm)supporting

confidence: 57%

Section: A Multicarpellate State In Fasciated Mutant Results From Proliferation Of Floral Meristem (Fm)mentioning

confidence: 93%

Section: A Multicarpellate State In Fasciated Mutant Results From Proliferation Of Floral Meristem (Fm)mentioning

confidence: 93%

Section: A Multicarpellate State In Fasciated Mutant Results From Proliferation Of Floral Meristem (Fm)mentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Interaction between Floral Merism and Symmetry: Evidence from Fasciated Mutant of Lupinus angustifolius L. (Leguminosae)

2019

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Evolutionary History of the Leguminous Flower

Sinjushin

2021

Biol Bull Rev

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Evaluation of the Possible Contribution of Various Regulatory Genes to Determination of Carpel Number as a Potential Mechanism for Optimal Agricultural Yield

Abiri

Sinjushin

Tekdal

et al. 2022

IJMS

Self Cite

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Various regulatory genes encoding transcription factors and miRNAs regulate carpel number. Multicarpelly is normally associated with increased size of the floral meristem, and several genetic factors have been discovered that influence this characteristic. A fundamental understanding of the regulatory genes affecting carpel number can facilitate strategies for agricultural yield improvement, which is crucial, given that the global population is growing rapidly. A multicarpellate plant may provide a significantly higher yield than a plant bearing fewer carpels. Higher yields can be achieved via various means; in this review, we provide an overview of the current knowledge of the various regulatory factors that contribute to multicarpelly and the potential of increasing carpel number to achieve an increased yield.

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Floral development in Thermopsis turcica, an unusual multicarpellate papilionoid legume

Cited by 4 publications

References 30 publications

Interaction between Floral Merism and Symmetry: Evidence from Fasciated Mutant of Lupinus angustifolius L. (Leguminosae)

Interaction between Floral Merism and Symmetry: Evidence from Fasciated Mutant of Lupinus angustifolius L. (Leguminosae)

Evolutionary History of the Leguminous Flower

Evaluation of the Possible Contribution of Various Regulatory Genes to Determination of Carpel Number as a Potential Mechanism for Optimal Agricultural Yield

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