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Floral ontogeny of Pedicularis (Orobanchaceae), with an emphasis on the corolla upper lip

Identifieur interne : 002B99 ( Main/Exploration ); précédent : 002B98; suivant : 002C00

Floral ontogeny of Pedicularis (Orobanchaceae), with an emphasis on the corolla upper lip

Auteurs : Wen-Bin Yu [République populaire de Chine, États-Unis] ; Jie Cai [République populaire de Chine] ; De-Zhu Li [République populaire de Chine] ; Robert R. Mill [Royaume-Uni] ; Hong Wang [République populaire de Chine]

Source :

Journal of Systematics and Evolution [ 1674-4918 ] ; 2013-07.

RBID : ISTEX:740637C263E1B88BF38CC524F142058AAAA3540F

Descripteurs français

Wicri :
- topic : Botanique.

English descriptors

KwdEn :
- Abaxial, Abaxial side, Adaxial, Agalinis, American journal, Anther, Armstrong douglas, Beak, Beaked, Beaked corollas, Beaked galea, Beaked species, Beakless, Bennett mathews, Bilateral, Blte, Blte galea, Bltl, Bltl galea, Botany, Calyx, Calyx lobes, Carpel, Carpel primordia, Cephalantha, China yunnan, Chinese academy, Clade, Clear pattern, Corolla, Corolla tube, Densispica, Early stages, Endress, Floral, Floral development, Floral ontogeny, Floral organogenesis, Franch, Galea, Galea types, Genus, Gruina, International journal, Kampny, Lateral, Lobe, Lutescens, Macior, Monosymmetry, Olmstead, Ontogeny, Oral apex, Oral development, Oral ontogeny, Oral organogenesis, Oral organs, Organogenesis, Orobanchaceae, Ower, Owers, Pedicularis, Pedicularis species, Petal, Petal primordia, Phylogeny, Plant sciences, Plant systematics, Pollination, Primordium, Racemose, Rhinanthoideae, Scrophulariaceae, Sepal, Sepal primordia, Siphonantha, Stamen, Stamen primordia, Superba, Systematics, Tenuisecta, Toothed, Toothed galea, Toothless, Toothless galea, Traditional scrophulariaceae, Upper petals, Wang, Whorled, Yunnan.
Teeft :
- Abaxial, Abaxial side, Adaxial, Agalinis, American journal, Anther, Armstrong douglas, Beak, Beaked, Beaked corollas, Beaked galea, Beaked species, Beakless, Bennett mathews, Bilateral, Blte, Blte galea, Bltl, Bltl galea, Botany, Calyx, Calyx lobes, Carpel, Carpel primordia, Cephalantha, China yunnan, Chinese academy, Clade, Clear pattern, Corolla, Corolla tube, Densispica, Early stages, Endress, Floral, Floral development, Floral ontogeny, Floral organogenesis, Franch, Galea, Galea types, Genus, Gruina, International journal, Kampny, Lateral, Lobe, Lutescens, Macior, Monosymmetry, Olmstead, Ontogeny, Oral apex, Oral development, Oral ontogeny, Oral organogenesis, Oral organs, Organogenesis, Orobanchaceae, Ower, Owers, Pedicularis, Pedicularis species, Petal, Petal primordia, Phylogeny, Plant sciences, Plant systematics, Pollination, Primordium, Racemose, Rhinanthoideae, Scrophulariaceae, Sepal, Sepal primordia, Siphonantha, Stamen, Stamen primordia, Superba, Systematics, Tenuisecta, Toothed, Toothed galea, Toothless, Toothless galea, Traditional scrophulariaceae, Upper petals, Wang, Whorled, Yunnan.

Abstract

Pedicularis shows high diversity in its corolla form, however, its floral ontogeny has been rarely investigated. In particular, the development of the highly variable upper lip (galea), three broad morphological types of which (beakless and toothless, beakless and toothed, beaked) can be discriminated, remains unknown. We used scanning electron microscopy to investigate the early stages of floral ontogeny in two beaked species, Pedicularis gruina and P. siphonantha. To compare the developmental processes of the three galea types, three species for each type were investigated. Initiations of floral organs in Pedicularis are consistent. Sepal initiations are successive from the lateral‐adaxial primordia, followed by the lateral‐abaxial ones (these sometimes missing), then the mid‐adaxial one (again sometimes missing). The stamens are initiated prior to the petals, or development of petal primordia may be retarded at the early stages in comparison with that of stamen primordia. Four stamen primordia are initiated simultaneously. The five petal primordia are initiated almost simultaneously. Development processes of the upper lip among the three galea types differ in the expansion rates and directions of the cells of the two lobes and these differences govern whether or not a beak and/or teeth are formed on the upper lip. The floral ontogeny of Pedicularis is close to that of Agalinis, which supports the molecular assignment. Floral monosymmetry of Pedicularis is established at the beginning of sepal initiation and is maintained until flowering. The development of the upper lip provides some clues to the evolution of beaked and/or toothed galeas in Pedicularis.

Url:

https://api.istex.fr/document/740637C263E1B88BF38CC524F142058AAAA3540F/fulltext/pdf

DOI: 10.1111/jse.12018

Affiliations:

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Le document en format XML

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<term>Abaxial side</term>
<term>Adaxial</term>
<term>Agalinis</term>
<term>American journal</term>
<term>Anther</term>
<term>Armstrong douglas</term>
<term>Beak</term>
<term>Beaked</term>
<term>Beaked corollas</term>
<term>Beaked galea</term>
<term>Beaked species</term>
<term>Beakless</term>
<term>Bennett mathews</term>
<term>Bilateral</term>
<term>Blte</term>
<term>Blte galea</term>
<term>Bltl</term>
<term>Bltl galea</term>
<term>Botany</term>
<term>Calyx</term>
<term>Calyx lobes</term>
<term>Carpel</term>
<term>Carpel primordia</term>
<term>Cephalantha</term>
<term>China yunnan</term>
<term>Chinese academy</term>
<term>Clade</term>
<term>Clear pattern</term>
<term>Corolla</term>
<term>Corolla tube</term>
<term>Densispica</term>
<term>Early stages</term>
<term>Endress</term>
<term>Floral</term>
<term>Floral development</term>
<term>Floral ontogeny</term>
<term>Floral organogenesis</term>
<term>Franch</term>
<term>Galea</term>
<term>Galea types</term>
<term>Genus</term>
<term>Gruina</term>
<term>International journal</term>
<term>Kampny</term>
<term>Lateral</term>
<term>Lobe</term>
<term>Lutescens</term>
<term>Macior</term>
<term>Monosymmetry</term>
<term>Olmstead</term>
<term>Ontogeny</term>
<term>Oral apex</term>
<term>Oral development</term>
<term>Oral ontogeny</term>
<term>Oral organogenesis</term>
<term>Oral organs</term>
<term>Organogenesis</term>
<term>Orobanchaceae</term>
<term>Ower</term>
<term>Owers</term>
<term>Pedicularis</term>
<term>Pedicularis species</term>
<term>Petal</term>
<term>Petal primordia</term>
<term>Phylogeny</term>
<term>Plant sciences</term>
<term>Plant systematics</term>
<term>Pollination</term>
<term>Primordium</term>
<term>Racemose</term>
<term>Rhinanthoideae</term>
<term>Scrophulariaceae</term>
<term>Sepal</term>
<term>Sepal primordia</term>
<term>Siphonantha</term>
<term>Stamen</term>
<term>Stamen primordia</term>
<term>Superba</term>
<term>Systematics</term>
<term>Tenuisecta</term>
<term>Toothed</term>
<term>Toothed galea</term>
<term>Toothless</term>
<term>Toothless galea</term>
<term>Traditional scrophulariaceae</term>
<term>Upper petals</term>
<term>Wang</term>
<term>Whorled</term>
<term>Yunnan</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en"><term>Abaxial</term>
<term>Abaxial side</term>
<term>Adaxial</term>
<term>Agalinis</term>
<term>American journal</term>
<term>Anther</term>
<term>Armstrong douglas</term>
<term>Beak</term>
<term>Beaked</term>
<term>Beaked corollas</term>
<term>Beaked galea</term>
<term>Beaked species</term>
<term>Beakless</term>
<term>Bennett mathews</term>
<term>Bilateral</term>
<term>Blte</term>
<term>Blte galea</term>
<term>Bltl</term>
<term>Bltl galea</term>
<term>Botany</term>
<term>Calyx</term>
<term>Calyx lobes</term>
<term>Carpel</term>
<term>Carpel primordia</term>
<term>Cephalantha</term>
<term>China yunnan</term>
<term>Chinese academy</term>
<term>Clade</term>
<term>Clear pattern</term>
<term>Corolla</term>
<term>Corolla tube</term>
<term>Densispica</term>
<term>Early stages</term>
<term>Endress</term>
<term>Floral</term>
<term>Floral development</term>
<term>Floral ontogeny</term>
<term>Floral organogenesis</term>
<term>Franch</term>
<term>Galea</term>
<term>Galea types</term>
<term>Genus</term>
<term>Gruina</term>
<term>International journal</term>
<term>Kampny</term>
<term>Lateral</term>
<term>Lobe</term>
<term>Lutescens</term>
<term>Macior</term>
<term>Monosymmetry</term>
<term>Olmstead</term>
<term>Ontogeny</term>
<term>Oral apex</term>
<term>Oral development</term>
<term>Oral ontogeny</term>
<term>Oral organogenesis</term>
<term>Oral organs</term>
<term>Organogenesis</term>
<term>Orobanchaceae</term>
<term>Ower</term>
<term>Owers</term>
<term>Pedicularis</term>
<term>Pedicularis species</term>
<term>Petal</term>
<term>Petal primordia</term>
<term>Phylogeny</term>
<term>Plant sciences</term>
<term>Plant systematics</term>
<term>Pollination</term>
<term>Primordium</term>
<term>Racemose</term>
<term>Rhinanthoideae</term>
<term>Scrophulariaceae</term>
<term>Sepal</term>
<term>Sepal primordia</term>
<term>Siphonantha</term>
<term>Stamen</term>
<term>Stamen primordia</term>
<term>Superba</term>
<term>Systematics</term>
<term>Tenuisecta</term>
<term>Toothed</term>
<term>Toothed galea</term>
<term>Toothless</term>
<term>Toothless galea</term>
<term>Traditional scrophulariaceae</term>
<term>Upper petals</term>
<term>Wang</term>
<term>Whorled</term>
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<front><div type="abstract" xml:lang="en">Pedicularis shows high diversity in its corolla form, however, its floral ontogeny has been rarely investigated. In particular, the development of the highly variable upper lip (galea), three broad morphological types of which (beakless and toothless, beakless and toothed, beaked) can be discriminated, remains unknown. We used scanning electron microscopy to investigate the early stages of floral ontogeny in two beaked species, Pedicularis gruina and P. siphonantha. To compare the developmental processes of the three galea types, three species for each type were investigated. Initiations of floral organs in Pedicularis are consistent. Sepal initiations are successive from the lateral‐adaxial primordia, followed by the lateral‐abaxial ones (these sometimes missing), then the mid‐adaxial one (again sometimes missing). The stamens are initiated prior to the petals, or development of petal primordia may be retarded at the early stages in comparison with that of stamen primordia. Four stamen primordia are initiated simultaneously. The five petal primordia are initiated almost simultaneously. Development processes of the upper lip among the three galea types differ in the expansion rates and directions of the cells of the two lobes and these differences govern whether or not a beak and/or teeth are formed on the upper lip. The floral ontogeny of Pedicularis is close to that of Agalinis, which supports the molecular assignment. Floral monosymmetry of Pedicularis is established at the beginning of sepal initiation and is maintained until flowering. The development of the upper lip provides some clues to the evolution of beaked and/or toothed galeas in Pedicularis.</div>
</front>
</TEI>
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<li>États-Unis</li>
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<settlement><li>Chicago</li>
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Floral ontogeny of Pedicularis (Orobanchaceae), with an emphasis on the corolla upper lip

Floral ontogeny of Pedicularis (Orobanchaceae), with an emphasis on the corolla upper lip

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri