apospory


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Related to apospory: apogamy

apospory

[′ap·ə‚spȯr·ē]
(mycology)
Suppression of spore formation with development of the haploid (sexual) generation directly from the diploid (asexual) generation.
References in periodicals archive ?
Stapf (2n = 4x = 36) hybrids revealed recombination around the apospory locus (Pessino et al.
Considering that recombination and flanking markers were found near the apospory locus in both buffelgrass and Brachiaria, it is possible that recombinants near the apomixis locus may only be recovered in intraspecific hybrids.
Interestingly, two cDNAs (Pea2 and Pca3) previously associated with apospory in buffelgrass by differential display (Vielle-Calzada et al.
It also suggests that the gene(s) controlling apomixis have diploid origin(s), with apospory mapping to a distinct subgenome in buffelgrass.
Detection of a defined linkage group with markers tightly linked to apospory in our population supports previous reports of recombination near the trait in buffelgrass (Gustine et al.
It is therefore possible that the chromosome region containing CSU781 must be removed (deleted or translocated) from 7b for apospory to be functional, and the alleles CSU781c and pPAP10E03e have partial lethality.
All but marker N15-370 could be shown to be coupled to the apospory gene, and thus on the same chromosome, by estimating linkages for coupling and repulsion phases (Wu et al.
Markers J16-800, UGT1971-44, and M02-680 bracketed the apospory locus and were linked within 5.
We have established linkage of two RAPD markers and one STS marker to the apospory locus in autotetraploid buffelgrass (Fig.
Because of previous genetic studies, we considered buffelgrass autotetraploid at the apospory locus.
Analysis of markers in larger population sizes of 75 to 100 progeny will provide better estimates of linkage order and distances, and would indicate whether A20-730 and B14-550 should be included as markers linked to the apospory locus.