Quantitative Evaluation of Soybean (Glycine max L. Merr.) Leaflet Shape by Principal Component Scores Based on Elliptic Fourier Descriptor.

Furuta, Naoya; Ninomiya, S.; Takahashi, Naohiko; Ohmori, Hiroshi; Ukai, Yasuo

doi:10.1270/jsbbs1951.45.315

Cited by 78 publications

(67 citation statements)

References 13 publications

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“…The severity of sperm-head anomaly was evaluated by a scoring method reported previously (Oka et al 2004); in this study, we renamed it the sperm-head morphology index (SHMI). For quantitative evaluation of spermhead morphology, we also employed a shape analysis software package, SHAPE (Iwata et al 1998;Iwata and Ukai 2002; http:/ /cse.naro.affrc.go.jp/iwatah/shape/), which uses a standardized elliptic Fourier descriptor (Kuhl and Giardina 1982;Furuta et al 1995). The coefficients of the standardized elliptic Fourier descriptors were calculated from each of the 850 spermhead samples, representing a total of 170 male progeny (five sperm heads for each male).…”

Section: Animalsmentioning

confidence: 99%

Disruption of Genetic Interaction Between Two Autosomal Regions and the X Chromosome Causes Reproductive Isolation Between Mouse Strains Derived From Different Subspecies

et al. 2007

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Reproductive isolation that initiates speciation is likely caused by incompatibility among multiple loci in organisms belonging to genetically diverging populations. Laboratory C57BL/6J mice, which predominantly originated from Mus musculus domesticus, and a MSM/Ms strain derived from Japanese wild mice (M. m. molossinus, genetically close to M. m. musculus) are reproductively isolated. Their F 1 hybrids are fertile, but successive intercrosses result in sterility. A consomic strain, C57BL/6J-ChrX MSM , which carries the X chromosome of MSM/Ms in the C57BL/6J background, shows male sterility, suggesting a genetic incompatibility of the MSM/Ms X chromosome and other C57BL/6J chromosome(s). In this study, we conducted genomewide linkage analysis and subsequent QTL analysis using the sperm shape anomaly that is the major cause of the sterility of the C57BL/6J-ChrX MSM males. These analyses successfully detected significant QTL on chromosomes 1 and 11 that interact with the X chromosome. The introduction of MSM/Ms chromosomes 1 and 11 into the C57BL/6J-ChrX MSM background failed to restore the sperm-head shape, but did partially restore fertility. This result suggests that this genetic interaction may play a crucial role in the reproductive isolation between the two strains. A detailed analysis of the male sterility by intracytoplasmic sperm injection and zona-free in vitro fertilization demonstrated that the C57BL/6J-ChrX MSM spermatozoa have a defect in penetration through the zona pellucida of eggs.

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Section: Animalsmentioning

confidence: 99%

Disruption of Genetic Interaction Between Two Autosomal Regions and the X Chromosome Causes Reproductive Isolation Between Mouse Strains Derived From Different Subspecies

et al. 2007

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“…The application of EFDs to plant organ shape analysis was first attempted by White et al (1988) in Betula leaf. EF-PCA, as suggested by Rohlf and Archie (1984), has been applied to the evaluation of several plant organs, such as Begonia leaf (McLellan, 1993), soybean leaflet (Furuta et al, 1995), buckwheat kernel (Ohsawa et al, 1998), radish root (Iwata et al, 1998), yam tuber (Toyohara et al, 2000) and citrus leaf . Recently, developed a software package, 'SHAPE', for the quantitative evaluation of biological shapes on the basis of EF-PCA.…”

Section: Introductionmentioning

confidence: 99%

Quantitative evaluation of the petal shape variation in Primula sieboldii caused by breeding process in the last 300 years

et al. 2005

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Primula sieboldii (E. Morren) has been a popular garden plant at least since the Edo period, about 300 years ago. We compared petal form between cultivars and wild populations in order to characterise the changes that have occurred during domestication. The comparison was made using EF-PCA analysis, which describes overall petal shape mathematically by transforming petal contour coordinates into elliptic Fourier descriptors; it subsequently summarises these descriptors by principal component analysis (PCA). Rearing cultivars in a common-garden experiment identified the PCs with a substantial genetic element. A clear heritable component was detected for the PCs characterising symmetrical variation in flower shape, but not the asymmetrical variation. Wild populations of this species have become endangered owing to habitat destruction by human activity, and many lowland floodplain habitats have been lost. Variation within the remaining wild populations was significantly lower than in the cultivars for PC1 (aspect ratio), PC3 (curvature of proximal and distal parts) and petal area; but not for PC2 (depth of head notch) and PC4 (position of the centre of gravity). The shifts in petal form from the wild populations to the cultivars parallel those seen in other croptypes following domestication, including an increase in size and diversity of forms: cultivars have shallower head notches, more fan-shaped petals and larger petals than do wild P. sieboldii. Heredity (2005) 94, 657-663.

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“…These coefficients are commonly used as new variables to describe the shape (Kuhl and Giardina, 1982;Lestrel, 1989;Navarro et al, 2004). Normalisation of flanged axes was performed by the major axis of the first harmonic (Kuhl and Giardina, 1982;Rohlf and Archie, 1984;Furuta et al, 1995;Zhan and Wang, 2012), and coefficients were size-normalised, using the square root of the harmonic amplitudes. The first three coefficients of the first harmonic (A 1 , B 1 and C 1 ) become constants and can be ignored in further calculations.…”

Section: Extraction Of Morphological Datamentioning

confidence: 99%

Unsupervised model-based clustering for typological classification of Middle Bronze Age flanged axes

Wilczek

Monna

Gabillot

et al. 2015

Journal of Archaeological Science: Reports

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Quantitative Evaluation of Soybean (Glycine max L. Merr.) Leaflet Shape by Principal Component Scores Based on Elliptic Fourier Descriptor.

Cited by 78 publications

References 13 publications

Disruption of Genetic Interaction Between Two Autosomal Regions and the X Chromosome Causes Reproductive Isolation Between Mouse Strains Derived From Different Subspecies

Disruption of Genetic Interaction Between Two Autosomal Regions and the X Chromosome Causes Reproductive Isolation Between Mouse Strains Derived From Different Subspecies

Quantitative evaluation of the petal shape variation in Primula sieboldii caused by breeding process in the last 300 years

Unsupervised model-based clustering for typological classification of Middle Bronze Age flanged axes

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