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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

The molecular genetic basis of cotton fiber strength and fineness in crosses between  Gossypium mustelinum  and  Gossypium hirsutum  (Upland cotton) was dissected using 21 BC 3 F 2  and 12 corresponding BC 3 F 2:3  and BC 3 F 2:4  families. The BC 3 F 2  families were genotyped with simple sequence repeat markers from a  G. hirsutum  by  G. mustelinum  linkage map, and the three generations of BC 3 -derived families were phenotyped for fiber strength (STR) and fineness (Micronaire, MIC). A total of 42 quantitative trait loci (QTLs) were identified through one-way analysis of variance, including 15 QTLs for STR and 27 for MIC, with the percentage of variance explained by individual loci averaging 13.86 and 14.06%, respectively. Eighteen of the 42 QTLs were detected at least twice near the same markers in different generations/families or near linked markers in the same family, and 28 of the 42 QTLs were identified in both mixed model-based composite interval mapping and one-way variance analyses. Alleles from  G. mustelinum  increased STR for eight of 15 and reduced MIC for 15 of 27 QTLs. Significant among-family genotypic effects ( P  < 0.001) were detected in 13 and 10 loci for STR and MIC respectively, and five loci showed significant ( P  < 0.001) genotype × family interaction for MIC. These results support the hypothesis that fiber quality improvement for Upland cotton could be realized by introgressing  G. mustelinum  alleles although complexities due to the different effects of genetic background on introgressed chromatin might be faced. Building on prior work with  G. barbadense, G. tomentosum , and  G. darwinii , QTL mapping involving introgression of  G. mustelinum  alleles offers new allelic variation to Upland cotton germplasm.

Advanced Backcross QTL Analysis of Fiber Strength and Fineness in a Cross between Gossypium hirsutum and G. mustelinum