English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A total of 205 wheat cultivars from the Yellow and Huai valley of China were used to identify allelic variations of vernalization and photoperiod response genes, as well as the copy number variations (CNVs) of  Ppd-B1  and  Vrn-A1  genes. A novel  Vrn-D1  allele with 174-bp insertion in the promoter region of the recessive allele  vrn-D1  was discovered in three Chinese wheat cultivars and designated as  Vrn-D1c . Quantitative real-time polymerase chain reaction showed that cultivars with the  Vrn-D1c  allele exhibited significantly higher expression of the  Vrn-D1  gene than that in cultivars with the recessive allele  vrn-D1 , indicating that the 174-bp insertion of  Vrn-D1c  contributed to the increase in  Vrn-D1  gene expression and caused early heading and flowering. The five new  cis -elements (Box II-like, 3-AF1 binding site, TC-rich repeats, Box-W1 and CAT-box) in the 174-bp insertion possibly promoted the basal activity level of  Vrn-D1  gene. Two new polymorphism combinations of photoperiod genes were identified and designated as  Ppd-D1_Hapl-IX  and  Ppd-D1_Hapl-X . Association of the CNV of  Ppd-B1  gene with the heading and flowering days showed that the cultivars with  Ppd-B1_Hapl-VI  demonstrated the earliest heading and flowering times, and those with  Ppd-B1_Hapl-IV  presented the latest heading and flowering times in three cropping seasons. Distribution of the vernalization and photoperiod response genes indicated that all recessive alleles at the four vernalization response loci,  Ppd-B1_Hapl-I  at  Ppd-B1  locus, and  Ppd-D1_Hapl-I  at the  Ppd-D1  locus were predominant in Chinese winter wheat cultivars. This study can provide useful information for wheat breeding programs to screen wheat cultivars with relatively superior adaptability and maturity.

Allelic variation at the vernalization and photoperiod sensitivity loci in Chinese winter wheat cultivars (Triticum aestivum L.)