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

Genotype-by-sequencing (GBS) was used to explore the genetic diversity and structure of  Spinacia turkestanica , and the selective sweeps involved in domestication of cultivated spinach,  S. oleracea , from  S. turkestanica . A total 7,065 single nucleotide polymorphisms (SNPs) generated for 16  Spinacia oleracea  and 76  S. turkestanica  accessions placed the  S. oleracea  accessions in one group,  Q 1, and the 76  S. turkestanica  accessions, which originated from Central Asia, in two distinct groups,  Q 2 and  Q 3. The  Q 2 group shared greater genetic identity with the  S. oleracea  accessions,  Q 1, than the  Q 3  S. turkestanica  group. Likewise, the  S. oleracea Q 1 group had a smaller  F st (0.008) with the  Q 2 group than with the  Q 3 group ( F st = 0.012), and a greater gene flow (Nm = 30.13) with the  Q 2 group than with the  Q 3 group (Nm = 21.83). The  Q 2 accessions originated primarily from Uzbekistan while the  Q 3 accessions originated mostly from Tajikistan. The Zarafshan Mountain Range appears to have served as a physical barrier that largely separated members of the  Q 2 and  Q 3 groups of  S. turkestanica . Accessions with admixtures of  Q 2 and  Q 3 were collected primarily from lower elevations at the southern end of the Zarafshan Mountain Range in Uzbekistan. Selective sweep regions identified at 32, 49, and 52 Mb on chromosomes 1, 2, and 3, respectively, appear to have played a vital role in the domestication of  S. oleracea  as they are correlated with important domestication traits, including day length sensitivity for bolting (flowering). High XP-CLR scores at the 52 Mb genomic region of chromosome three suggest that a selective sweep at this region was responsible for early differentiation of  S. turkestanica  into two groups in Central Asia.

Genetic Diversity, Structure, and Selective Sweeps in Spinacia turkestanica Associated With the Domestication of Cultivated Spinach