IDENTIFICATION OF RECIPROCAL HYBRIDS IN CITRUS BY THE BROADNESS OF THE LEAF PETIOLE WING

Citation
Rml. Ballve et al., IDENTIFICATION OF RECIPROCAL HYBRIDS IN CITRUS BY THE BROADNESS OF THE LEAF PETIOLE WING, BRAZ J GENE, 20(4), 1997, pp. 697-702
Citations number
20
Journal title
Brazilian journal of genetics
ISSN journal
01008455 → ACNP
Volume
20
Issue
4
Year of publication
1997
Pages
697 - 702
Database
ISI
SICI code
Abstract
Broadness of leaf petiole wing (WE) was investigated as a morphologica l marker for screening hybrids of the very narrow-winged species Citru s limonia and C. sunki with broad-winged species C. aurantium and C. s inensis. Controlled polinizations produced over 500 reciprocal hybrids with potential in the ongoing rootstock breeding program identified b y the Pgi-1 and Prx(a)-1 isozyme loci. Measurement ratios WB/leaf leng th, WB/leaf broadness and WB/petiole length identified 86 to 91% of th e reciprocal hybrids produced. However, visual classification of WE wa s an equally efficient but much easier and faster method. It can be ve ry useful in breeding programs when large number of plants have to be screened or when isozyme, RFLP or RAPD laboratories are not available.