Flower development inPisum sativum: From the war of the whorls to the battle of the common primordia

Ferrándiz, Cristina; Navarro, Cristina; Gómez,; Canas, L; Beltran, JP

doi:10.1002/(sici)1520-6408(1999)25:3<280::aid-dvg10>3.0.co;2-3

Cited by 64 publications

(10 citation statements)

References 38 publications

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“…To date, ‘double’ flowers are known in several legume species, such as P. sativum ( petalosus ( pe ) mutants: [ 8 ]), L. corniculatus [ 14 ], Genista tinctoria (this species normally has no FNs), and W. floribunda . The latter species was examined in the given research.…”

Section: Discussionmentioning

confidence: 99%

“…Most probably, a ‘double’ floral phenotype in Wisteria is connected with an excessive proliferation of common primordia rather than of floral apex itself, so flower bears a carpel and FN is patterned at its base. The pe mutant of pea couples anomalous proliferation of floral apex (additional floral organs are found inside an unfused carpel) and subdivision of common primordia [ 8 ]; there is no data on FNs in pe flowers.…”

Section: Discussionmentioning

confidence: 99%

“…The third largest angiosperm family, Leguminosae, includes numerous representatives of high agricultural value, as well as convenient model species, such as Pisum sativum L., Medicago truncatula Gaertn., and Lotus japonicus (Regel) K. Larsen. For both reasons, numerous leguminous mutants with anomalies in flower development are known (e.g., [ 8 ]). As compared with Brassicaceae, flowers are much more diverse in Leguminosae with respect to their symmetry, merism, synorganization between different domains, as well as different patterns of multiplication and reduction of various floral parts [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

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Phenotypes of Floral Nectaries in Developmental Mutants of Legumes and What They May Tell about Genetic Control of Nectary Formation

Sinjushin

2022

Biology

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The vast majority of angiosperms attracts animal pollinators with the nectar secreted through specialized floral nectaries (FNs). Although there is evidence that principal patterns of regulation of FN development are conserved in large angiosperm clades, these structures are very diverse considering their morphology and position within a flower. Most data on genetic control of FN formation were obtained in surveys of a model plant species, Arabidopsis thaliana (Brassicaceae). There are almost no data on genetic factors affecting FN development in Leguminosae, the plant family of a high agricultural value and possessing outstandingly diverse flowers. In this work, the morphology of FNs was examined in a set of leguminous species, both wild-type and developmental mutants, by the means of a scanning electron microscopy. Unlike Brassicaceae, FNs in legumes are localized between stamens and a carpel instead of being associated with a certain floral organ. FNs were found stable in most cases of mutants when perianth and/or androecium morphology was affected. However, regulation of FN development by BLADE-ON-PETIOLE-like genes seems to be a shared feature between legumes (at least Pisum) and Arabidopsis. In some legumes, the adaxial developmental program (most probably CYCLOIDEA-mediated) suppresses the FN development. The obtained results neither confirm the role of orthologues of UNUSUAL FLORAL ORGANS and LEAFY in FN development in legumes nor reject it, as two studied pea mutants were homozygous at the weakest alleles of the corresponding loci and possessed FNs similar to those of wild-type.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Phenotypes of Floral Nectaries in Developmental Mutants of Legumes and What They May Tell about Genetic Control of Nectary Formation

Sinjushin

2022

Biology

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“…Key regulators of floral organ identity (genes of ABC-model, see (Weigel & Meyerowitz 1994)) have also been cloned in Pisum and appeared homologous to such regulators in Arabidopsis. These are STAMINA PISTILLOIDA (STP), the pea ortholog of PISTILLATA (Taylor et al 2001, Berbel et al 2005; PETALOSUS (PE), probable C-class regulator (Ferrandiz et al 1999), and PEAM4 homologous to APETALA1 (Berbel et al 2001). Although their function is conserved in different angiosperms, these genes have some specificity of expression in zygomorphic papilionate flower.…”

Section: Flower Structurementioning

confidence: 99%

Mutation genetics of pea (Pisum sativum L.): What is done and what is left to do

Sinjushin¹

2013

Ratar i povrt

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Together with an outstanding practical value, garden pea (Pisum sativum L.) represents a classical model object for studies on ontogeny of compound inflorescence, compound leaf, zygomorphic flower and nodulation. Both crop improvement and developmental researches become possible, as a range of natural variation was broadened by mutations. A contemporary state of mutation genetics in pea is reviewed with special reference to genetics of ontogeny and practical value.

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“…These cells then follow a specific developmental pattern to form a recognizable floral primordium through cell proliferation, and then develop from the floral primordium into each organ of the flower [12]. Once all of the primordia are activated, the relative position and the total number of floral organs, as well as the basic structure, leaf order, and symmetry of the flower, are determined, and the flower buds open under appropriate conditions [13]. Thus, in the process of floral organ formation, at the molecular level the transcriptional activity is increased, and the biological pathways are activated [14].…”

Section: Introductionmentioning

confidence: 99%

Deep Sequencing and Analysis of Transcriptomes of Pinus koraiensis Sieb. & Zucc.

Shi

Yan

Zhao

et al. 2020

Forests

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The objective of this research was to study the differences in endogenous hormone levels and the genes related to reproductive development in Chinese pinenut (Pinus koraiensis) trees of different ages. The apical buds of P. koraiensis were collected from 2-, 5-, 10-, 15-, and 30-year-old plants and also from grafted plants. There were three replicates from each group used for transcriptome sequencing. After assembly and annotation, we identified the differentially expressed genes (DEGs) and performed enrichment analysis, pathway analysis, and expression analysis of the DEGs in each sample. The results showed that unigenes related to reproductive development, such as c64070.graph_c0 and c68641.graph_c0, were expressed at relatively low levels at young ages, and that the relative expression gradually increased with increasing plant age. In addition the highest expression levels were reached around 10 and 15 years of age, after which they gradually decreased. Moreover, some unigenes, such as c61855.graph_c0, were annotated as abscisic acid hydroxylase genes, and the expression of c61855.graph_c0 gradually declined with increasing age in P. koraiensis.

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Flower development inPisum sativum: From the war of the whorls to the battle of the common primordia

Cited by 64 publications

References 38 publications

Phenotypes of Floral Nectaries in Developmental Mutants of Legumes and What They May Tell about Genetic Control of Nectary Formation

Phenotypes of Floral Nectaries in Developmental Mutants of Legumes and What They May Tell about Genetic Control of Nectary Formation

Mutation genetics of pea (Pisum sativum L.): What is done and what is left to do

Deep Sequencing and Analysis of Transcriptomes of Pinus koraiensis Sieb. & Zucc.

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