Cargando…

Tripsazea, a Novel Trihybrid of Zea mays, Tripsacum dactyloides, and Zea perennis

A trispecific hybrid, MTP (hereafter called tripsazea), was developed from intergeneric crosses involving tetraploid Zea mays (2n = 4x = 40, genome: MMMM), tetraploid Tripsacum dactyloides (2n = 4x = 72, TTTT), and tetraploid Z. perennis (2n = 4x = 40, PPPP). On crossing maize-Tripsacum (2n = 4x = 5...

Descripción completa

Detalles Bibliográficos
Autores principales: Yan, Xu, Cheng, Mingjun, Li, Yingzheng, Wu, Zizhou, Li, Yang, Li, Xiaofeng, He, Ruyu, Yang, Chunyan, Zhao, Yanli, Li, Huaxiong, Wen, Xiaodong, Zhang, Ping, Sam, Ebenezer, Rong, Tingzhao, He, Jianmei, Tang, Qilin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Genetics Society of America 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7003090/
https://www.ncbi.nlm.nih.gov/pubmed/31792004
http://dx.doi.org/10.1534/g3.119.400942
_version_ 1783494473384198144
author Yan, Xu
Cheng, Mingjun
Li, Yingzheng
Wu, Zizhou
Li, Yang
Li, Xiaofeng
He, Ruyu
Yang, Chunyan
Zhao, Yanli
Li, Huaxiong
Wen, Xiaodong
Zhang, Ping
Sam, Ebenezer
Rong, Tingzhao
He, Jianmei
Tang, Qilin
author_facet Yan, Xu
Cheng, Mingjun
Li, Yingzheng
Wu, Zizhou
Li, Yang
Li, Xiaofeng
He, Ruyu
Yang, Chunyan
Zhao, Yanli
Li, Huaxiong
Wen, Xiaodong
Zhang, Ping
Sam, Ebenezer
Rong, Tingzhao
He, Jianmei
Tang, Qilin
author_sort Yan, Xu
collection PubMed
description A trispecific hybrid, MTP (hereafter called tripsazea), was developed from intergeneric crosses involving tetraploid Zea mays (2n = 4x = 40, genome: MMMM), tetraploid Tripsacum dactyloides (2n = 4x = 72, TTTT), and tetraploid Z. perennis (2n = 4x = 40, PPPP). On crossing maize-Tripsacum (2n = 4x = 56, MMTT) with Z. perennis, 37 progenies with varying chromosome numbers (36-74) were obtained, and a special one (i.e., tripsazea) possessing 2n = 74 chromosomes was generated. Tripsazea is perennial and expresses phenotypic characteristics affected by its progenitor parent. Flow cytometry analysis of tripsazea and its parents showed that tripsazea underwent DNA sequence elimination during allohexaploidization. Of all the chromosomes in diakinesis I, 18.42% participated in heterogenetic pairing, including 16.43% between the M- and P-genomes, 1.59% between the M- and T-genomes, and 0.39% in T- and P-genome pairing. Tripsazea is male sterile and partly female fertile. In comparison with previously synthesized trihybrids containing maize, Tripsacum and teosinte, tripsazea has a higher chromosome number, higher seed setting rate, and vegetative propagation ability of stand and stem. However, few trihybrids possess these valuable traits at the same time. The potential of tripsazea is discussed with respect to the deployment of the genetic bridge for maize improvement and forage breeding.
format Online
Article
Text
id pubmed-7003090
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Genetics Society of America
record_format MEDLINE/PubMed
spelling pubmed-70030902020-02-14 Tripsazea, a Novel Trihybrid of Zea mays, Tripsacum dactyloides, and Zea perennis Yan, Xu Cheng, Mingjun Li, Yingzheng Wu, Zizhou Li, Yang Li, Xiaofeng He, Ruyu Yang, Chunyan Zhao, Yanli Li, Huaxiong Wen, Xiaodong Zhang, Ping Sam, Ebenezer Rong, Tingzhao He, Jianmei Tang, Qilin G3 (Bethesda) Investigations A trispecific hybrid, MTP (hereafter called tripsazea), was developed from intergeneric crosses involving tetraploid Zea mays (2n = 4x = 40, genome: MMMM), tetraploid Tripsacum dactyloides (2n = 4x = 72, TTTT), and tetraploid Z. perennis (2n = 4x = 40, PPPP). On crossing maize-Tripsacum (2n = 4x = 56, MMTT) with Z. perennis, 37 progenies with varying chromosome numbers (36-74) were obtained, and a special one (i.e., tripsazea) possessing 2n = 74 chromosomes was generated. Tripsazea is perennial and expresses phenotypic characteristics affected by its progenitor parent. Flow cytometry analysis of tripsazea and its parents showed that tripsazea underwent DNA sequence elimination during allohexaploidization. Of all the chromosomes in diakinesis I, 18.42% participated in heterogenetic pairing, including 16.43% between the M- and P-genomes, 1.59% between the M- and T-genomes, and 0.39% in T- and P-genome pairing. Tripsazea is male sterile and partly female fertile. In comparison with previously synthesized trihybrids containing maize, Tripsacum and teosinte, tripsazea has a higher chromosome number, higher seed setting rate, and vegetative propagation ability of stand and stem. However, few trihybrids possess these valuable traits at the same time. The potential of tripsazea is discussed with respect to the deployment of the genetic bridge for maize improvement and forage breeding. Genetics Society of America 2019-12-02 /pmc/articles/PMC7003090/ /pubmed/31792004 http://dx.doi.org/10.1534/g3.119.400942 Text en Copyright © 2020 Yan et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Investigations
Yan, Xu
Cheng, Mingjun
Li, Yingzheng
Wu, Zizhou
Li, Yang
Li, Xiaofeng
He, Ruyu
Yang, Chunyan
Zhao, Yanli
Li, Huaxiong
Wen, Xiaodong
Zhang, Ping
Sam, Ebenezer
Rong, Tingzhao
He, Jianmei
Tang, Qilin
Tripsazea, a Novel Trihybrid of Zea mays, Tripsacum dactyloides, and Zea perennis
title Tripsazea, a Novel Trihybrid of Zea mays, Tripsacum dactyloides, and Zea perennis
title_full Tripsazea, a Novel Trihybrid of Zea mays, Tripsacum dactyloides, and Zea perennis
title_fullStr Tripsazea, a Novel Trihybrid of Zea mays, Tripsacum dactyloides, and Zea perennis
title_full_unstemmed Tripsazea, a Novel Trihybrid of Zea mays, Tripsacum dactyloides, and Zea perennis
title_short Tripsazea, a Novel Trihybrid of Zea mays, Tripsacum dactyloides, and Zea perennis
title_sort tripsazea, a novel trihybrid of zea mays, tripsacum dactyloides, and zea perennis
topic Investigations
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7003090/
https://www.ncbi.nlm.nih.gov/pubmed/31792004
http://dx.doi.org/10.1534/g3.119.400942
work_keys_str_mv AT yanxu tripsazeaanoveltrihybridofzeamaystripsacumdactyloidesandzeaperennis
AT chengmingjun tripsazeaanoveltrihybridofzeamaystripsacumdactyloidesandzeaperennis
AT liyingzheng tripsazeaanoveltrihybridofzeamaystripsacumdactyloidesandzeaperennis
AT wuzizhou tripsazeaanoveltrihybridofzeamaystripsacumdactyloidesandzeaperennis
AT liyang tripsazeaanoveltrihybridofzeamaystripsacumdactyloidesandzeaperennis
AT lixiaofeng tripsazeaanoveltrihybridofzeamaystripsacumdactyloidesandzeaperennis
AT heruyu tripsazeaanoveltrihybridofzeamaystripsacumdactyloidesandzeaperennis
AT yangchunyan tripsazeaanoveltrihybridofzeamaystripsacumdactyloidesandzeaperennis
AT zhaoyanli tripsazeaanoveltrihybridofzeamaystripsacumdactyloidesandzeaperennis
AT lihuaxiong tripsazeaanoveltrihybridofzeamaystripsacumdactyloidesandzeaperennis
AT wenxiaodong tripsazeaanoveltrihybridofzeamaystripsacumdactyloidesandzeaperennis
AT zhangping tripsazeaanoveltrihybridofzeamaystripsacumdactyloidesandzeaperennis
AT samebenezer tripsazeaanoveltrihybridofzeamaystripsacumdactyloidesandzeaperennis
AT rongtingzhao tripsazeaanoveltrihybridofzeamaystripsacumdactyloidesandzeaperennis
AT hejianmei tripsazeaanoveltrihybridofzeamaystripsacumdactyloidesandzeaperennis
AT tangqilin tripsazeaanoveltrihybridofzeamaystripsacumdactyloidesandzeaperennis