Isolation and characterisation of a pod dehiscence zone-specific polygalacturonase fromBrassica napus

Petersen, Morten; Sander, Lilli; Child, R. Dennis; Onckelen, Harry Van; Ulvskov, Peter; Borkhardt, Bernhard

doi:10.1007/bf00042225

Cited by 88 publications

(71 citation statements)

References 36 publications

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“…Polygalacturonases, for example, have been shown to be related to the process of dehiscence in Arabidopsis and Brassica napus (Petersen et al, 1996;Sander et al, 2001).…”

Section: Flower and Fruit Development In Arabidopsis 641mentioning

confidence: 99%

Flower and fruit development in Arabidopsis thaliana

Robles¹,

Pelaz²

2005

Int. J. Dev. Biol.

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KEY WORDS: Arabidopsis, flower development, fruit patterning An introduction to flower developmentAngiosperms, the flowering plants, develop complex reproductive structures, the flowers. In spite of the great diversity in the form, color and structure of the flowers, they share a common characteristic, the basic construction plan. Most flowers consist of rings of floral organs, with external sterile organs surrounding the reproductive structures located in the center. A typical eudicot flower is composed of four rings, or whorls, of organs. The outermost whorl is composed of sepals and within this whorl are the petals, then the stamens (the male reproductive organs) and finally the carpels or female structures in the center of the flower (Figure 1). Later on in development, the fertilized carpels will give rise to the fruit.The last 15 years have been very fruitful for the study of the flower development and we now understand better how a flower develops. Most of the genetic and molecular studies that have played a key role in this understanding of flower development have been performed in three distant eudicot plants, Arabidopsis thaliana, Antirrhinum majus and Petunia hybrida. These studies, in conjunction with the initial cloning of some of the genes involved in flower development, led to the proposal of the elegant and broadly Int. J. Dev. Biol. 49: 633-643 (2005) doi: 10.1387/ijdb.052020pr accepted ABC model of flower development (Bowman et al., 1991, Coen and. Because this model proved valid for several other plant species (Rutledge et al., 1998, Tandre et al., 1998, Ambrose et al., 2000, Fornara et al., 2003 we can consider this ABC model as universal. However, it is during the last five years that new data have led to the proposal of a revised version of the classic ABC model, broadly accepted as the floral quartet model. The revised model includes a new function that is required for the development of the four types of floral organs and proposes that the development of each organ is achieved by the formation of large protein complexes. The ABC modelGenetic studies in Arabidopsis thaliana and Antirrhinum majus led to the proposal of the landmark ABC model of flower development (Bowman et al., 1991, Coen and. This model proposes that three different activities, A, B and C, alone or in combination specify the distinct organs of the four whorls of the flower. A function alone is responsible of the sepal development in the outermost whorl, A and B functions together specify the petals 634 P. Robles and S. Pelaz in the second whorl, B and C determine the stamens in the third whorl and C function specifies the carpels in the center of the flower. The model also proposes that A and C functions are mutually antagonistic (Figure 1). According to the model, mutant flowers in the A function genes have the sepals transformed into carpels and the petals into stamens due to the ectopic C activity in the outer whorls of the flower. The resultant flower is composed of carpels-stamens-stamens-carpels, from the out...

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“…Polygalacturonases, for example, have been shown to be related to the process of dehiscence in Arabidopsis and Brassica napus (Petersen et al, 1996;Sander et al, 2001).…”

Section: Flower and Fruit Development In Arabidopsis 641mentioning

confidence: 99%

Flower and fruit development in Arabidopsis thaliana

Robles¹,

Pelaz²

2005

Int. J. Dev. Biol.

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“…The pod shattering may result from external factors such as contact with other pods, racemes, or harvesting machinery, which separate the vascular connections across the dehiscence zone of pod wall (Peterson et al 1996). The significant yield losses due to pod shattering have been reported (IITA 1986;Tiwari and Bhatnagar 1991;Tefera et al 2009;Krisnawati et al 2015;Krisnawati and Adie 2016), ranging from 34% to 100% in severe cases.…”

Section: Introductionmentioning

confidence: 99%

Variability on morphological characters associated with pod shattering resistance in soybean

Krisnawati¹,

Adie²

2017

Biodiversitas

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Abstract. Krisnawati A, Adie MM. 2016. Variability on morphological characters associated with pod shattering resistance in soybean. . Pod shattering is one of the major constraint associated with soybean production during dry season in Indonesia. The objectives of the study were to investigate varietal difference of pod shattering and to identify the morphological pod characters related to pod shattering. The field study was carried out in Blitar (East Java, Indonesia) during the dry season 2015. Morphological traits of pod were studied for their association with pod shattering trait in 30 soybean genotypes. The results showed significant differences between genotypes for all characters studied. The degree of shattering varied among genotypes with shattering percentage ranging from 2.5% (G511H/Argom//Argom-2-1) to 100% (Grobogan) with mean of 30%.However, among the 30 genotypes studied, 13 genotypes were relatively resistant, 11 genotypes moderate, 1 genotype susceptible, and 5 genotypes were very highly susceptible. Further path coefficient analysis indicated direct effects of the pod wall thickness and pod length on shattering percentage while other causal effects were small. These characters (pod wall thickness and pod length) may play role as determinant factors in pod shattering resistance. Therefore, soybean resistance to pod shattering could be enhanced by increasing thickness of the pod wall.

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“…With the advancement of next-generation sequencing and genome-wide association analysis, several genes involved in pod dehiscence have been discovered, and a variety of mutations underlying shattering resistance have been determined in many crops and their wild relatives [52,149]. In Brassica, efforts to improve shattering resistance include interfering with the dehiscence process via manipulating its molecular and hormonal control pathways [150,151], and generating transgenic lines with pod-shattering resistance [81,82]. For instance, the Arabidopsis gene FUL was successfully transferred to a Brassica crop species, and the ectopic expression of this gene was sufficient to control pod shattering in the Brassica crop [124].…”

Section: Efforts To Control Pod Shatteringmentioning

confidence: 99%

Pod Shattering: A Homologous Series of Variation Underlying Domestication and an Avenue for Crop Improvement

Ogutcen¹,

Pandey²,

Khan³

et al. 2018

Preprint

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In wild habitats, fruit dehiscence is a critical strategy for seed dispersal; however, in cultivated crops it is one of the major sources of yield loss. Therefore, indehiscence of fruits, pods, etc., was likely to be one of the first traits strongly selected in crop domestication. Even with the historical selection against dehiscence in early domesticates, it is a trait still targeted in many breeding programs, particularly in minor or underutilized crops. Here, we review of this trait in pulse (grain legume) crops, which are of growing importance as a source of protein in human and livestock diets, and which have received less attention iii) the molecular pathways underlying this important trait, iv) an overview of the extent of crop losses due to shattering, and the effects of environmental factors on shattering, and, v) efforts to reduce shattering in crops. While our focus is mainly pulse crops, we also included comparisons to crucifers and cereals because there is extensive research on shattering in these taxa.

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Isolation and characterisation of a pod dehiscence zone-specific polygalacturonase fromBrassica napus

Cited by 88 publications

References 36 publications

Flower and fruit development in Arabidopsis thaliana

Flower and fruit development in Arabidopsis thaliana

Variability on morphological characters associated with pod shattering resistance in soybean

Pod Shattering: A Homologous Series of Variation Underlying Domestication and an Avenue for Crop Improvement

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