Open AccessChromosome doubling induces apomixis in a cassava× Manihot anomala hybrid
Author(s) -
Nassar Nagib M. A.
Publication year - 2006
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1111/j.2006.0018-0661.01957.x
Subject(s) - apomixis , biology , polyploid , ploidy , hybrid , ovule , chromosome number , botany , manihot , chromosome , interspecific hybrids , interspecific hybridization , anomala , karyotype , genetics , pollen , gene
A new species was synthesized artificially by chromosome doubling of an interspecific hybrid between cassava and Manihot anomala . The ensuing polyploid type exhibits an apomictic nature and maintains its morphological characteristics in the progeny. It showed a 29% frequency of multiembryonic sacs in its examined ovules whereas the multiembryonic sacs were absent in the diploid type.