biostudies-literatureUnknown9Zhao YThe maize (Zea mays) stigma, which is commonly known as silk, is indispensable for reproduction and thus for grain yield. Here, we isolated a spontaneous mutant sk-A7110, which completely lacks silk; scanning electron microscopy showed that the sk-A7110 pistils degenerated during late floret differentiation. Genetic analysis confirmed that this trait was controlled by a recessive nuclear gene and sk-A7110 was mapped to a 74.13-kb region on chromosome 2 between the simple sequence repeat markers LA714 and L277. Sequence analysis of candidate genes in this interval identified a single-nucleotide insertion at position 569 downstream of the transcriptional start site in Zm00001d002970, which encodes a UDP-glycosyltransferase; this insertion prodFrontiers in plant science1227https://www.ebi.ac.uk/biostudies/studies/S-EPMC6111845biostudies-literatureMapping and Functional Analysis of a Maize Silkless Mutant sk-A7110.PMC6111845Zhang YLiu BWang XGao XXu WZhao YWang LfalseMapping and Functional Analysis of a Maize Silkless Mutant sk-A7110.The maize (Zea mays) stigma, which is commonly known as silk, is indispensable for reproduction and thus for grain yield. Here, we isolated a spontaneous mutant sk-A7110, which completely lacks silk; scanning electron microscopy showed that the sk-A7110 pistils degenerated during late floret differentiation. Genetic analysis confirmed that this trait was controlled by a recessive nuclear gene and sk-A7110 was mapped to a 74.13-kb region on chromosome 2 between the simple sequence repeat markers LA714 and L277. Sequence analysis of candidate genes in this interval identified a single-nucleotide insertion at position 569 downstream of the transcriptional start site in Zm00001d002970, which encodes a UDP-glycosyltransferase; this insertion prod2018-01-01T00:00:00Z20182026-04-08T00:46:05.307Z2019-03-26T23:54:39ZS-EPMC61118453018629910.3389/fpls.2018.01227