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Comparative Analysis of Four Buckwheat Species Based on Morphology and Complete Chloroplast Genome Sequences.


ABSTRACT: Buckwheat is a nutritional and economically crop belonging to Polygonaceae, Fagopyrum. To better understand the mutation patterns and evolution trend in the chloroplast (cp) genome of buckwheat, and found sufficient number of variable regions to explore the phylogenetic relationships of this genus, two complete cp genomes of buckwheat including Fagopyrum dibotrys (F. dibotrys) and Fagopyrum luojishanense (F. luojishanense) were sequenced, and other two Fagopyrum cp genomes were used for comparative analysis. After morphological analysis, the main difference among these buckwheat were height, leaf shape, seeds and flower type. F. luojishanense was distinguishable from the cultivated species easily. Although the F. dibotrys and two cultivated species has some similarity, they different in habit and component contents. The cp genome of F. dibotrys was 159,320?bp while the F. luojishanense was 159,265?bp. 48 and 61 SSRs were found in F. dibotrys and F. luojishanense respectively. Meanwhile, 10 highly variable regions among these buckwheat species were located precisely. The phylogenetic relationships among four Fagopyrum species based on complete cp genomes was showed. The results suggested that F. dibotrys is more closely related to Fagopyrum tataricum. These data provided valuable genetic information for Fagopyrum species identification, taxonomy, phylogenetic study and molecular breeding.

SUBMITTER: Wang CL 

PROVIDER: S-EPMC5529468 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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Comparative Analysis of Four Buckwheat Species Based on Morphology and Complete Chloroplast Genome Sequences.

Wang Cheng-Long CL   Ding Meng-Qi MQ   Zou Chen-Yan CY   Zhu Xue-Mei XM   Tang Yu Y   Zhou Mei-Liang ML   Shao Ji-Rong JR  

Scientific reports 20170726 1


Buckwheat is a nutritional and economically crop belonging to Polygonaceae, Fagopyrum. To better understand the mutation patterns and evolution trend in the chloroplast (cp) genome of buckwheat, and found sufficient number of variable regions to explore the phylogenetic relationships of this genus, two complete cp genomes of buckwheat including Fagopyrum dibotrys (F. dibotrys) and Fagopyrum luojishanense (F. luojishanense) were sequenced, and other two Fagopyrum cp genomes were used for comparat  ...[more]

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