NDLI: A comparative study of the seed structure between resynthesized allotetraploid and their diploid parents

Content Provider	Springer Nature Link
Author	Ran, Liping Pi, Mingxue Wu, Jian Jiang, Jinjin Wang, Youping
Copyright Year	2016
Abstract	Brassicaceae is at the forefront of evolution because of its frequent hybridization. Hybridization is responsible for the induction of widespread genetic and phenotype changes, making it important in agricultural production. In this study, we obtained resynthesized allotetraploid Brassica napus by performing interspecific crossing of B. rapa × B. oleracea combined with embryo rescue. We applied light microscopy and electronic microscopy to analyze the microstructure and ultrastructure of seeds of diploid parents and their allotetraploid progeny. Results showed that pigments in the seed coat were mainly distributed in the palisade layer. B. rapa presented the highest amount of pigment followed by B. napus and B. oleracea. B. napus had the thickest palisade layer followed by B. rapa and B. oleracea. The seed coat microsculpturing in B. rapa and B. napus was characterized as reticulate or reticulate-foveate, whereas that in B. oleracea was observed to be rugose and sulcate. The area index of the protein body was higher in central meristematic cells than in parenchyma cells. By contrast, the area index of the oil body was the lowest in central meristematic cells. Protein bodies were found to be heterogeneous with crystal globoids in two diploid parents and resynthesized allotetraploid progenies. Oil bodies consisted of large and small oil bodies, the sizes of which differed between two parents and allotetraploid progenies. Small oil bodies were spheroid, whereas large oil bodies were ovoid in shape. The quantity of oil bodies indicated that oil bodies were spheroid in two parents, ranging in size from 0.12 to 1.18 μm. In comparison, the size of large oil bodies in allotetraploid progenies exceeds 2.0 μm. These findings suggest that the anatomy of resynthesized allotetraploid seeds remarkably differs from that of two diploid parents, and these differences definitely affect the nutritional components of rapeseeds.
Starting Page	1079
Ending Page	1089
Page Count	11
File Format	PDF
ISSN	0033183X
Journal	Protoplasma
Volume Number	254
Issue Number	2
e-ISSN	16156102
Language	English
Publisher	Springer Vienna
Publisher Date	2016-08-19
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Brassica rapa Brassica oleracea Brassica napus Seed structure Protein body Oil body Cell Biology Plant Sciences Zoology
Content Type	Text
Resource Type	Article
Subject	Cell Biology Plant Science Medicine

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Proteomic Changes in Newly Synthesized Brassica napus Allotetraploids and Their Early Generations

Combination of resistance to Verticillium longisporum from zero erucic acid Brassica oleracea and oilseed Brassica rapa genotypes in resynthesized rapeseed (Brassica napus) lines

Structural and functional comparative mapping between the Brassica A genomes in allotetraploid Brassica napus and diploid Brassica rapa

Resynthesizing Brassica napus from interspecific hybridization between Brassica rapa and B. oleracea through ovary culture

Improving ovary and embryo culture techniques for efficient resynthesis of Brassica napus from reciprocal crosses between yellow-seeded diploids B. rapa and B. oleracea

Quantitative Trait Locus Mapping of Resistance to Turnip Yellows Virus in Brassica rapa and Brassica oleracea and Introgression of These Resistances by Resynthesis Into Allotetraploid Plants for Deployment in Brassica napus

Glucosinolates and other seed quality traits of resynthesized Brassica napus L. derived from domesticated and wild Brassica taxa

Improvement of Brassica napus via interspecific hybridization between B. napus and B. oleracea

Mapping of days to flower and seed yield in spring oilseed Brassica napus carrying genome content introgressed from Brassica oleracea

A comparative study of the seed structure between resynthesized allotetraploid and their diploid parents

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