YY1 (Yin Yang 1) [5] is a transcriptional repressor protein in humans that is encoded by the YY1 gene. [6][7] YY1 is a ubiquitously distributed transcription factor belonging to the GLI-Kruppel class of zinc finger proteins. The protein is involved in …

In mammals, the Y chromosome contains the SRY gene, which triggers development of male gonads. The Y chromosome is passed only from male parents to male offspring. The Y chromosome was identified as a sex-determining chromosome by Nettie Stevens at Bryn Mawr College in 1905 during a study of the mealworm Tenebrio molitor.

2025年1月23日 · For some genes, knockouts (KOs) have never been made. In this study, we established a pipeline to systematically generate null Y-gene deletions and performed extensive fertility phenotyping, thereby determining which genes are …

2025年2月6日 · We found several MFF candidate genes, including slCyp704B1-Y (gene ID scaffold1_000971), which is homologous to the A. thaliana Cyp704B1 gene, encoding a cytochrome P450 protein crucial for pollen maturation. slCyp704B1-Y is expressed in the

This review focuses on the structure, inheritance characteristics, gene content, and the origin and evolution of Y chromosome. We also discuss the long-term destiny of Y chromosome. Key words: Y-chromosome degeneration, recombination suppression, evolutionary strata, transcriptome

2013年3月28日 · Here, we describe the precise mapping of Ty-1 and Ty-3 to a common chromosomal region, and we show that Ty-1 and Ty-3 are alleles that code for an RNA–dependent RNA polymerase of a class for which no function had been described before. Thus, Ty-1/Ty-3 unveils a completely new class of resistance genes.

2022年12月19日 · The Ty-1/Ty-3 gene from chilense (LA1969) encodes an RNA-dependent RNA polymerase that participates in antiviral RNA silencing and was the first and only TYLCV dominant resistance gene to be cloned. Ty-1 and Ty-3 are RDR type homologs of A. thaliana RDR3, RDR4, and RDR5 genes, which have yet to be assigned functions (Verlaan et al., 2013).

2012年12月26日 · 该标记能够区分抗病材料、感病材料及抗病杂合材料，是与番茄黄化曲叶病毒病抗病基因Ty-1紧密连锁的共显性标记。 利用该标记对13份番茄杂交种进行检测，有8份杂交种含有Ty-1抗病基因，3份材料不含Ty-1抗病基因。 利用这条标记对国内的13份番茄自交系进行检测，13份材料均不含Ty-1抗病基因。

2019年11月22日 · Tomato yellow leaf curl virus (TYLCV), a begomovirus, causes large yield losses and breeding for resistance is an effective way to combat this viral disease. The resistance gene Ty-1 codes for an RNA-dependent RNA polymerase and has recently been shown to enhance transcriptional gene silencing of TYLCV.

Breeding for TYLCV resistance has been based on the introgression of multiple resistance genes originating from several wild tomato species. In this study we have fine-mapped the widely used Solanum chilense-derived Ty-1 and Ty-3 genes by screening nearly 12,000 plants for recombination events and generating recombinant inbred lines.