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Abstract Detail

Recent Topics Posters

Wang, Yinghao [1], Wei, Wei [2], Kang, Dingming [1], Ma, Keping [3].

Seed coat microsculpturing is related to genomic components in wild Brassica juncea and Sinapis arvensis.

Seed coat microsculpturing (SCM) is known to be an excellent character for taxonomic and evolutionary studies. By identifying collections from Xinjiang, China, and combining SCM pattern, flow cytometry, and genome-specific DNA markers as well as sexual compatibility with known species, this study aimed to detect potential relationships between SCM and genomic types in wild Brassica and related species. Three wild collections were found to be tetraploid with a SCM reticulate pattern similar to B. juncea, and containing A and B genome-specific loci, indicating relatively high sexual compatibility with B. juncea. The others were diploid, carrying S-genome-specific DNA markers, and having relatively high sexual compatibility with Sinapis arvensis. Moreover, their SCM was in a rugose pattern similar to that of S. arvensis. It was suggested that SCM, as a morphological characteristic, can reflect genomic type, and be used to distinguish B-genome species such as Brassica juncea from the related S. arvensis. The relationship between SCM and genomic type can support taxonomic studies of the wild Brassica species and related species.

Broader Impacts:

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1 - China Agricultural University
2 - 20 Nanxincun, Xiangshan, Beijing, N/A, 100093, China
3 - Chinese Academy of Sciences, Institute of Botany, 20 Nan Xin Cun, Beijing, 100093, China

Brassica juncea
genomic type
maternal effect
seed morphology
Sinapis arvensis.

Presentation Type: Recent Topics Poster
Session: P
Location: Grand Salon A - D/Riverside Hilton
Date: Monday, July 29th, 2013
Time: 5:30 PM
Number: PRT014
Abstract ID:1303
Candidate for Awards:None

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