e-journal

Chromosome changes after polyploidization in Triticeae

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Chromosome changes are common in Triticeae, and they occur widely in natural and resynthesized
polyploidy. Two important factors, nucleocytoplasmic interaction (internal) and the environment (external), can
significantly influence chromosome changes after polyploidization. And chromosomal DNA changes play key roles
during the initial formation, gradual stabilization, and establishment of polyploids. Hybrid breeding between common
wheat and related wild species of Triticeae is an example of polyploidization, and many of the chromosome changes
occurring after hybridization could be useful for improving wheat varieties. The famous chromosomal translocation
1BL/1RS that occurred after ancestral hybridization between wheat and rye is distributed widely among modern
wheat varieties and makes a big contribution to wheat breeding; xiaoyan 6 is a similarly distant hybridization between
wheat and Agropyron elongatum (Host) P. Beauv. in China. This chromosome translocation line was cultivated as the
main variety in Shaanxi Province for 16 years and has also been used as a core parent for wheat breeding in China
during the past 20 years because of its outstanding merits.

Key words chromosome changes, environmental factors, nucleocytoplasmic interaction (NCI), polyploidization,
Triticeae, wheat breeding.

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Ketersediaan

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Informasi Detail

Judul Seri

Journal of Systematics and Evolution

No. Panggil

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Penerbit

: Institute of Botany., 2014

Deskripsi Fisik

Journal of Systematics and Evolution 52 (6): 790–793 (2014)

Bahasa

English

ISBN/ISSN

doi: 10.1111/jse.121

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

BIOLOGI

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/Agus

Versi lain/terkait

Lampiran Berkas

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