The characteristics of gametogenesis may contribute to the partial female-fertility in aneuploid Lilium
- 1College of Forestry, Jiangxi Agricultural University
Abstract
Unlike most aneuploid plants which are usually seedless, aneuploid lilies (Lilium), have partial female-fertility regardless of their male sterility. However, the underlying mechanisms remain unclear. ‘Chen Xi’, as an example of aneuploid lilies, was investigated for its gamete formation and fertility using modern cytogenetic methods. It had 44 chromosomes, consisting of 35 A-chromosomes and 9 L-chromosomes. Many irregular meiotic characters, such as trivalents, univalents, lagging chromosomes and micronuclei, were commonly observed. It produced functional eggs with variable chromosomes ranging from 19 to 48 among the analyzed nine progenies, indicating that it had partial female-fertility regardless of male sterility. However, the chromosome numbers in the secondary nuclei of embryo sacs produced by ‘Chen Xi’ were invariable twice those of its somatic cells. This was the first time to confirm the derived principle – Each aneuploid Lilium produces variable chromosomal eggs and invariable chromosomal secondary nuclei in its embryo sacs. The principle would be associated with the partial female-fertility regardless of male sterility of aneuploid lilies.
Related
- The Linker Histone Plays a Dual Role during Gametogenesis in Saccharomyces cerevisiae
- Hypothermic Conditions Impair GnRH Pulse Generator Activity and Gametogenesis
- Premeiotic chromatin states orchestrate gene expression during male gametogenesis in rice
- Conserved genes with variable expression and function: Vasa, Piwi, and Dnmt1 in Oncopeltus fasciatus gametogenesis
- Disrupted FAP-satellite cell communication contribute to maladaptive muscle remodeling in older women
BibTeX
@article{chen2026characteristics,
title = {{The characteristics of gametogenesis may contribute to the partial female-fertility in aneuploid Lilium}},
author = {Juanjuan Chen and Lu Chen and Yanling Zeng and Lu Li and Yanni Sun and Shujun Zhou},
journal = {BMC Plant Biology},
year = {2026},
month = jul,
doi = {10.1186/s12870-026-09487-6},
url = {https://doi.org/10.1186/s12870-026-09487-6},
note = {CC BY},
}
RIS
TY - JOUR
TI - The characteristics of gametogenesis may contribute to the partial female-fertility in aneuploid Lilium
AU - Juanjuan Chen
AU - Lu Chen
AU - Yanling Zeng
AU - Lu Li
AU - Yanni Sun
AU - Shujun Zhou
PY - 2026
DA - 2026/07/01
JO - BMC Plant Biology
DO - 10.1186/s12870-026-09487-6
UR - https://doi.org/10.1186/s12870-026-09487-6
AB - Unlike most aneuploid plants which are usually seedless, aneuploid lilies (Lilium), have partial female-fertility regardless of their male sterility. However, the underlying mechanisms remain unclear. ‘Chen Xi’, as an example of aneuploid lilies, was investigated for its gamete formation and fertility using modern cytogenetic methods. It had 44 chromosomes, consisting of 35 A-chromosomes and 9 L-chromosomes. Many irregular meiotic characters, such as trivalents, univalents, lagging chromosomes and micronuclei, were commonly observed. It produced functional eggs with variable chromosomes ranging from 19 to 48 among the analyzed nine progenies, indicating that it had partial female-fertility regardless of male sterility. However, the chromosome numbers in the secondary nuclei of embryo sacs produced by ‘Chen Xi’ were invariable twice those of its somatic cells. This was the first time to confirm the derived principle – Each aneuploid Lilium produces variable chromosomal eggs and invariable chromosomal secondary nuclei in its embryo sacs. The principle would be associated with the partial female-fertility regardless of male sterility of aneuploid lilies.
SN - 1471-2229
ER -