Inducing homozygosity in transgenic barley (Hordeum vulgare L.) by microspore culture

Anneli Ritala (Corresponding Author), S. Marttila, Annika Wilhelmson, Anna-Maria Nuutila

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Abstract

Homozygosity was induced in transgenic barley by microspore culture. Spikes of transgenic barley plants carrying microspores in the late uni-nucleate stage were cold pretreated. Teflon rod maceration and a density of 100 000 viable micropores per plate were used. The developed calli were regenerated and plantlets were treated with colchicine. The microspore culture of 16 mother plants (three transgenic lines) resulted in 927 green regenerants. Of these plants, 476 were transferred to soil, 380 were transgenic, 358 reached maturity and 350 were fertile with a normal seed-set carrying a yield of 6.9 kg. A production efficiency of 0.8 fertile transgenic doubled haploid barley plants per spike used for microspore isolation was recorded. The produced transgenic seeds were used in malting experiments.
Original languageEnglish
Pages (from-to)601 - 609
Number of pages9
JournalActa Physiologiae Plantarum
Volume27
Issue number4
DOIs
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed

Fingerprint

microspores
Hordeum
homozygosity
Hordeum vulgare
Genetically Modified Plants
barley
genetically modified organisms
Seeds
Haploidy
Colchicine
Bony Callus
Polytetrafluoroethylene
Pollen
Soil
inflorescences
micropores
malting
maceration
colchicine
doubled haploids

Keywords

  • barley
  • double haploid
  • endo-beta-glucanase
  • microspore culture
  • transgenic

Cite this

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title = "Inducing homozygosity in transgenic barley (Hordeum vulgare L.) by microspore culture",
abstract = "Homozygosity was induced in transgenic barley by microspore culture. Spikes of transgenic barley plants carrying microspores in the late uni-nucleate stage were cold pretreated. Teflon rod maceration and a density of 100 000 viable micropores per plate were used. The developed calli were regenerated and plantlets were treated with colchicine. The microspore culture of 16 mother plants (three transgenic lines) resulted in 927 green regenerants. Of these plants, 476 were transferred to soil, 380 were transgenic, 358 reached maturity and 350 were fertile with a normal seed-set carrying a yield of 6.9 kg. A production efficiency of 0.8 fertile transgenic doubled haploid barley plants per spike used for microspore isolation was recorded. The produced transgenic seeds were used in malting experiments.",
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author = "Anneli Ritala and S. Marttila and Annika Wilhelmson and Anna-Maria Nuutila",
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Inducing homozygosity in transgenic barley (Hordeum vulgare L.) by microspore culture. / Ritala, Anneli (Corresponding Author); Marttila, S.; Wilhelmson, Annika; Nuutila, Anna-Maria.

In: Acta Physiologiae Plantarum, Vol. 27, No. 4, 2005, p. 601 - 609.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Inducing homozygosity in transgenic barley (Hordeum vulgare L.) by microspore culture

AU - Ritala, Anneli

AU - Marttila, S.

AU - Wilhelmson, Annika

AU - Nuutila, Anna-Maria

PY - 2005

Y1 - 2005

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AB - Homozygosity was induced in transgenic barley by microspore culture. Spikes of transgenic barley plants carrying microspores in the late uni-nucleate stage were cold pretreated. Teflon rod maceration and a density of 100 000 viable micropores per plate were used. The developed calli were regenerated and plantlets were treated with colchicine. The microspore culture of 16 mother plants (three transgenic lines) resulted in 927 green regenerants. Of these plants, 476 were transferred to soil, 380 were transgenic, 358 reached maturity and 350 were fertile with a normal seed-set carrying a yield of 6.9 kg. A production efficiency of 0.8 fertile transgenic doubled haploid barley plants per spike used for microspore isolation was recorded. The produced transgenic seeds were used in malting experiments.

KW - barley

KW - double haploid

KW - endo-beta-glucanase

KW - microspore culture

KW - transgenic

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DO - 10.1007/s11738-005-0064-9

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JO - Acta Physiologiae Plantarum

JF - Acta Physiologiae Plantarum

SN - 0137-5881

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