Knowledge Center Catalog

Efficient selection for adaptation to the environment through QTL mapping and manipulation in maize

By: Contributor(s): Material type: TextTextPublication details: Mexico, DF (Mexico) CIMMYT : 2000ISBN:
  • 970-648-052-8
Subject(s): DDC classification:
  • 631.53 RIB
Summary: Factors of adaptation of maize to northern latitudes include early flowering and the ability to germinate|and grow under low temperatures (referred to as early vigor). Marker-assisted selection approaches|were used to select for these traits. In two separate experiments, and thus independent segregating|populations, QTL 's were identified. In one experiment alleles responsible for early flowering were|transferred from the early line to the high yielding later line through marker-assisted backcrossing.|BC3S2-derived lines flowered five days earlier than the original recurrent parent while maintaining the|original high yield potential. In the second experiment favorable alleles for early vigor and other agronomic|traits were selected for in a recurrent selection scheme. Major improvements in early vigor, often beyond|the best parent's performance, were observed with the derived lines.|
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Item type Current library Collection Call number Copy number Status Date due Barcode Item holds
Conference proceedings CIMMYT Knowledge Center: John Woolston Library CIMMYT Publications Collection 631.53 RIB (Browse shelf(Opens below)) 1 Available P629165
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Factors of adaptation of maize to northern latitudes include early flowering and the ability to germinate|and grow under low temperatures (referred to as early vigor). Marker-assisted selection approaches|were used to select for these traits. In two separate experiments, and thus independent segregating|populations, QTL 's were identified. In one experiment alleles responsible for early flowering were|transferred from the early line to the high yielding later line through marker-assisted backcrossing.|BC3S2-derived lines flowered five days earlier than the original recurrent parent while maintaining the|original high yield potential. In the second experiment favorable alleles for early vigor and other agronomic|traits were selected for in a recurrent selection scheme. Major improvements in early vigor, often beyond|the best parent's performance, were observed with the derived lines.|

English

0101|AL-Maize Program|AL-ABC Program|AGRIS 0101

Jose Juan Caballero

CIMMYT Publications Collection


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