Record Details

Wild Species In Crop Improvement

OAR@ICRISAT

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Relation http://oar.icrisat.org/4141/
 
Title Wild Species In Crop Improvement
 
Creator Moss, J P
 
Subject Agriculture-Farming, Production, Technology, Economics
 
Description Wild relatives are useful sources of characters denired
to improve crop. Many of these apecies are resistant
to pests and diseases or adapted to adverse
environmente. Some have higher yields than their
cultivated relatives. Genes from some vild relative.
can undergo meiotic recombinatlnn. producing segregante
from which the plant breeder can select improved type*:
rhese gencfi can usunl ly function ef fertively in
cultivars. The limit to utilization of vild relatives
depends on the breeder's ability to produce hybrida.
but hybrids may be sterile. Ploidy differences between
crops nnd vild relatives are frequent, but manipulatins
ploidy level can improve gene transfer. Triploids are
often sterile. but progeny from triploids lnclude
recombinants that may not occur at other ploidy levels.
The Croundnut Cytogenetics Unit at ICRISAT ha6
transferred desirable genes from diploid vild specie.
into tatraplnid liner crossable vith groundnot.
cnabling breeders to incorporate vild species genes
into locally adapted material. Triploids, hexaploidm.
amphiploids and autotetraploids have been produced and
backcrossed vith the cultivated groundnut. Some line8
have disease resistance and good agronomic traits,
including high seed yield. and have been entered in A11
India Coordinated Oilfieedfi Project trials.
 
Date 1984
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/4141/1/CP_185.pdf
Moss, J P (1984) Wild Species In Crop Improvement. In: Biotechnology in international agricultural research: proceedings of the Inter-Center Seminar on International Agricultural Research Centers (IARCs) and Biotechnology, 23-27 April 1984, Manila, Philippines.