Cargando…

Identification of a low tiller gene from a new plant type cultivar in rice (Oryza sativa L.)

We characterized a rice introgression line, YTH34, harboring a chromosome segment from a New Plant Type (NPT) cultivar, IR65600-87-2-2-3, in the genetic background of an Indica Group elite rice cultivar, IR 64, under upland and irrigated lowland conditions in Japan. The number of panicles (as an ind...

Descripción completa

Detalles Bibliográficos
Autores principales: Uddin, Md. Nashir, Tomita, Asami, Obara, Mitsuhiro, Yanagihara, Seiji, Fukuta, Yoshimichi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Japanese Society of Breeding 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5282767/
https://www.ncbi.nlm.nih.gov/pubmed/28163595
http://dx.doi.org/10.1270/jsbbs.16143
_version_ 1782503388613705728
author Uddin, Md. Nashir
Tomita, Asami
Obara, Mitsuhiro
Yanagihara, Seiji
Fukuta, Yoshimichi
author_facet Uddin, Md. Nashir
Tomita, Asami
Obara, Mitsuhiro
Yanagihara, Seiji
Fukuta, Yoshimichi
author_sort Uddin, Md. Nashir
collection PubMed
description We characterized a rice introgression line, YTH34, harboring a chromosome segment from a New Plant Type (NPT) cultivar, IR65600-87-2-2-3, in the genetic background of an Indica Group elite rice cultivar, IR 64, under upland and irrigated lowland conditions in Japan. The number of panicles (as an indicator of tiller number) and number of spikelets per panicle of YTH34 were lower than those of IR 64 under irrigated lowland conditions, but both of those as well as culm length, panicle length, seed fertility, panicle weight, whole plant weight, and harvest index were dramatically reduced under upland conditions. And the low tiller of YTH34 was confirmed to start after the maximum tiller stage. In particular, the decrease of panicle number was remarkable in upland, so we tried to identify the chromosome location of the relevant gene. Through segregation and linkage analyses using F(3) family lines derived from a cross between IR 64 and YTH34, and SSR markers, we found that low tiller number was controlled by a single recessive gene, ltn2, and mapped with the distance of 2.1 cM from SSR marker RM21950, in an introgressed segment on chromosome 7. YTH34 harboring ltn2 and the genetic information for DNA markers linked will be useful for genetic modification of plant architectures of Indica Group rice cultivar.
format Online
Article
Text
id pubmed-5282767
institution National Center for Biotechnology Information
language English
publishDate 2016
publisher Japanese Society of Breeding
record_format MEDLINE/PubMed
spelling pubmed-52827672017-02-03 Identification of a low tiller gene from a new plant type cultivar in rice (Oryza sativa L.) Uddin, Md. Nashir Tomita, Asami Obara, Mitsuhiro Yanagihara, Seiji Fukuta, Yoshimichi Breed Sci Research Paper We characterized a rice introgression line, YTH34, harboring a chromosome segment from a New Plant Type (NPT) cultivar, IR65600-87-2-2-3, in the genetic background of an Indica Group elite rice cultivar, IR 64, under upland and irrigated lowland conditions in Japan. The number of panicles (as an indicator of tiller number) and number of spikelets per panicle of YTH34 were lower than those of IR 64 under irrigated lowland conditions, but both of those as well as culm length, panicle length, seed fertility, panicle weight, whole plant weight, and harvest index were dramatically reduced under upland conditions. And the low tiller of YTH34 was confirmed to start after the maximum tiller stage. In particular, the decrease of panicle number was remarkable in upland, so we tried to identify the chromosome location of the relevant gene. Through segregation and linkage analyses using F(3) family lines derived from a cross between IR 64 and YTH34, and SSR markers, we found that low tiller number was controlled by a single recessive gene, ltn2, and mapped with the distance of 2.1 cM from SSR marker RM21950, in an introgressed segment on chromosome 7. YTH34 harboring ltn2 and the genetic information for DNA markers linked will be useful for genetic modification of plant architectures of Indica Group rice cultivar. Japanese Society of Breeding 2016-12 2016-11-23 /pmc/articles/PMC5282767/ /pubmed/28163595 http://dx.doi.org/10.1270/jsbbs.16143 Text en Copyright © 2016 by JAPANESE SOCIETY OF BREEDING http://creativecommons.org/licenses/by-nc-nd/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Paper
Uddin, Md. Nashir
Tomita, Asami
Obara, Mitsuhiro
Yanagihara, Seiji
Fukuta, Yoshimichi
Identification of a low tiller gene from a new plant type cultivar in rice (Oryza sativa L.)
title Identification of a low tiller gene from a new plant type cultivar in rice (Oryza sativa L.)
title_full Identification of a low tiller gene from a new plant type cultivar in rice (Oryza sativa L.)
title_fullStr Identification of a low tiller gene from a new plant type cultivar in rice (Oryza sativa L.)
title_full_unstemmed Identification of a low tiller gene from a new plant type cultivar in rice (Oryza sativa L.)
title_short Identification of a low tiller gene from a new plant type cultivar in rice (Oryza sativa L.)
title_sort identification of a low tiller gene from a new plant type cultivar in rice (oryza sativa l.)
topic Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5282767/
https://www.ncbi.nlm.nih.gov/pubmed/28163595
http://dx.doi.org/10.1270/jsbbs.16143
work_keys_str_mv AT uddinmdnashir identificationofalowtillergenefromanewplanttypecultivarinriceoryzasatival
AT tomitaasami identificationofalowtillergenefromanewplanttypecultivarinriceoryzasatival
AT obaramitsuhiro identificationofalowtillergenefromanewplanttypecultivarinriceoryzasatival
AT yanagiharaseiji identificationofalowtillergenefromanewplanttypecultivarinriceoryzasatival
AT fukutayoshimichi identificationofalowtillergenefromanewplanttypecultivarinriceoryzasatival