Teosinte Pollen Drive guides maize diversification and domestication by RNAi

Berube, Benjamin, Ernst, Evan, Cahn, Jonathan, Roche, Benjamin, de Santis Alves, Cristiane, Lynn, Jason, Scheben, Armin, Grimanelli, Daniel, Siepel, Adam, Ross-Ibarra, Jeffrey, Kermicle, Jerry, Martienssen, Robert A (August 2024) Teosinte Pollen Drive guides maize diversification and domestication by RNAi. Nature. ISSN 0028-0836 (Public Dataset)

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Abstract

Selfish genetic elements contribute to hybrid incompatibility and bias or 'drive' their own transmission1,2. Chromosomal drive typically functions in asymmetric female meiosis, whereas gene drive is normally post-meiotic and typically found in males. Here, using single-molecule and single-pollen genome sequencing, we describe Teosinte Pollen Drive, an instance of gene drive in hybrids between maize (Zea mays ssp. mays) and teosinte mexicana (Z. mays ssp. mexicana) that depends on RNA interference (RNAi). 22-nucleotide small RNAs from a non-coding RNA hairpin in mexicana depend on Dicer-like 2 (Dcl2) and target Teosinte Drive Responder 1 (Tdr1), which encodes a lipase required for pollen viability. Dcl2, Tdr1 and the hairpin are in tight pseudolinkage on chromosome 5, but only when transmitted through the male. Introgression of mexicana into early cultivated maize is thought to have been critical to its geographical dispersal throughout the Americas3, and a tightly linked inversion in mexicana spans a major domestication sweep in modern maize4. A survey of maize traditional varieties and sympatric populations of teosinte mexicana reveals correlated patterns of admixture among unlinked genes required for RNAi on at least four chromosomes that are also subject to gene drive in pollen from synthetic hybrids. Teosinte Pollen Drive probably had a major role in maize domestication and diversification, and offers an explanation for the widespread abundance of 'self' small RNAs in the germ lines of plants and animals.

Item Type: Paper
Subjects: bioinformatics
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification
bioinformatics > genomics and proteomics > genetics & nucleic acid processing
bioinformatics > genomics and proteomics
Investigative techniques and equipment
Investigative techniques and equipment > RNAI
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > RNAi
CSHL Authors:
Communities: CSHL Cancer Center Program > Cancer Genetics and Genomics Program
CSHL Cancer Center Program > Gene Regulation and Inheritance Program
CSHL labs > Martienssen lab
CSHL labs > Siepel lab
CSHL Cancer Center Program
SWORD Depositor: CSHL Elements
Depositing User: CSHL Elements
Date: 7 August 2024
Date Deposited: 12 Aug 2024 17:03
Last Modified: 12 Aug 2024 17:03
Related URLs:
Dataset ID:
URI: https://repository.cshl.edu/id/eprint/41630

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