Chromosome Identification and Nomenclature of Sorghum Bicolor

Overview

Journal Genetics

Publisher Oxford University Press

Specialty Genetics

Date 2004 Oct 19

PMID 15489512

Citations 45

Authors

Jeong-Soon Kim

Patricia E Klein

Robert R Klein

H James Price

John E Mullet

David M Stelly

Affiliations

Soon will be listed here.

Abstract

Linkage group identities and homologies were determined for metaphase chromosomes of Sorghum bicolor (2n = 20) by FISH of landed BACs. Relative lengths of chromosomes in FISH-karyotyped metaphase spreads of the elite inbred BTx623 were used to estimate the molecular size of each chromosome and to establish a size-based nomenclature for sorghum chromosomes (SBI-01-SBI-10) and linkage groups (LG-01 to LG-10). Lengths of arms were determined to orient linkage groups relative to a standard karyotypic layout (short arms at top). The size-based nomenclature for BTx623 represents a reasonable choice as the standard for a unified chromosome nomenclature for use by the sorghum research community.

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