A carbohydrate-binding protein, FLOURY ENDOSPERM 6 influences the initiation of A- and B-type starch granules in wheat
A carbohydrate-binding protein, FLOURY ENDOSPERM 6 influences the initiation of A- and B-type starch granules in wheat
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FLOURY ENDOSPERM 6 是一种碳水化合物结合蛋白,可影响小麦中 A 型和 B 型淀粉颗粒的形成
DOI:
10.1101/643759
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Chia T
中科院分区:
文献类型:
--
作者:
Chia T
Previously, we identified a quantitative trait locus on the group 4 chromosomes of Aegilops and bread wheat that controls B-type starch-granule content. Here, we identify a candidate gene by fine-mapping in Aegilops and confirm its function using wheat TILLING mutants. This gene is orthologous to theFLOURY ENDOSPERM 6(FLO6) gene of rice and barley and the PTST2 gene of Arabidopsis. In Triticeae endosperm, reduction in the gene dose of functionalFLO6alleles results in reduction, or loss, of B-granules. This is due to repression of granule initiation in late-grain development, but has no deleterious impact on the synthesis of A-granules. The complete absence of functional FLO6, however, results in reduced numbers of normal A-type and B-type granules and the production of highly-abnormal granules that vary in size and shape. This polymorphous starch seen in a wheatflo6triple mutant is similar to that observed in the barley mutant Franubet. Analysis of Franubet (fractured Nubet) starch suggests that the mutant A-granules are not fractured but compound, due to stimulation of granule initiation in plastids during early-grain development. Thus, in different situations in Triticeae, FLO6 either stimulates or represses granule initiation.
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DOI:
--
发表时间:
1983
期刊:
影响因子:
--
作者:
田中 正武;河原 太八
通讯作者:
河原 太八
DOI:
--
发表时间:
1983
期刊:
影响因子:
--
作者:
DeHaas Bw;K. Goering;Eslick Rf
通讯作者:
Eslick Rf
影响因子:
56.9
作者:
Appels, Rudi;Eversole, Kellye;Uauy, Cristobal
通讯作者:
Uauy, Cristobal
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
Verhoeven Tmo
通讯作者:
Verhoeven Tmo
DOI:
--
发表时间:
1965
期刊:
影响因子:
--
作者:
N. Badenhuizen
通讯作者:
N. Badenhuizen