EVALUATION OF THE GENETIC DIVERSITY IN DIPLOID BANANAS (MUSA SPP)

被引：43
|
作者：
CARREEL, F
FAURE, S
DELEON, DG
LAGODA, PJL
PERRIER, X
BAKRY, F
DUMONTCEL, HT
LANAUD, C
HORRY, JP
机构：
[1] CIMMYT INT, MEXICO CITY 06600, DF, MEXICO
[2] CIRAD, FLHOR, F-97130 CAPESTERRE BELLE EA, Guadeloupe, FRANCE
来源：
GENETICS SELECTION EVOLUTION | 1994年 / 26卷
关键词：
MUSA SP; SPECIES COMPLEX; RFLP; TAXONOMY;
D O I：
10.1051/gse:19940709
中图分类号：
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号：
0905 ;
摘要：
Most cultivated bananas are triploids. Diploid bananas are important to breeding programmes. We analyzed diploids to investigate the genetic organisation of the Musa species complex. Restriction fragment length polymorphism (RFLP) was used to analyze the genetic diversity of 160 diploid bananas. 70 seminiferous clones (wild bananas) of the species Musa acuminata, M balbisiana and M schizocarpa and 90 parthenocarpic clones (cultivars) were studied using 30 mapped single copy nuclear probes. Alleles specific to the 3 species studied were found. M acuminata is the most polymorphic: its genetic structuration is discussed. M schizocarpa appeared to be very similar to M acuminata banksii, and M balbisiana is more divergent. All the diploid parthenocarpic bananas contain M acuminata alleles. This confirm the involvement of M acuminata in the origin of parthenorarpy. Some cultivars were proved to be hybrids between M acuminata and M schizocarpa.
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页码：S125 / S136
页数：12
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