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https://www.selleckchem.com/products/iwp-2.html Cotton (Gossypium) seed fibers can be divided into lint (long) or fuzz (very short). Using fiberless (fuzzless-lintless) mutants, the lint initiation gene Li3 was identified by map-based cloning. The gene is an R2R3-MYB transcription factor located on chromosome D12 (GhMML3_D12). Sequence analysis revealed that li3 is a loss-of-function allele containing a retrotransposon insertion in the second exon that completely blocks the gene's expression. The genetic loci n2 and n3 underlying the recessive fuzzless phenotype in Gossypium hirsutum were also mapped. The genomic location of n3 overlapped with that of the dominant fuzzless locus N1 , and n3 appeared to be a loss-of-function allele caused by a single nucleotide polymorphism (SNP) mutation in the coding region of GhMML3_A12. The n2 allele was found to be co-located with li3 and originated from G. babardense. n2 and li3 are possibly the multiple alleles of the GhMML3_D12 gene. Genetic analysis showed that Li3 and N3 are a pair of homologs with additive effects for the initiation of fibers (fuzz or lint). In addition, the presence of another locus was speculated, and it appeared to show an inhibitory effect on the expression of GhMML3. These findings provide new information about the genetic factors affecting the initiation of fibers in cotton.Sea ice supports a unique assemblage of microorganisms that underpin Antarctic coastal food-webs, but reduced ice thickness coupled with increased snow cover will modify energy flow and could lead to photodamage in ice-associated microalgae. In this study, microsensors were used to examine the influence of rapid shifts in irradiance on extracellular oxidative free radicals produced by sea-ice algae. Bottom-ice algal communities were exposed to one of three levels of incident light for 10 days low (0.5 μmol photons m-2 s-1, 30 cm snow cover), mid-range (5 μmol photons m-2 s-1, 10 cm snow), or high light (13 μmol photons m-2 s-1, no

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