Abstract
The main objective of the present study was to identify chromosome number variation in the progenies from triploid × diploid/tetraploid (3x × 2x/4x) crosses in Lilium to analyze the survival of aneuploid embryos from 3x × 2x/4x crosses and the potential significance of triploid for lily breeding. Two male-sterile autotriploid Asiatic lily cultivars were crossed with four diploid and/or two autotetraploid Asiatic cultivars. The results showed that the fruits of all triploid × diploid/tetraploid (3 x × 2 x /4 x ) crosses fully developed, and seedlings were obtained from the 3 x × 2 x /4 x crosses, indicating that male-sterile autotriploid lilies can be used as female parents. Chromosome preparation showed that the progenies of the 3 x × 2 x /4 x are predominantly aneuploid. Based on megasporogenesis, we deduce that the endosperm of 3 x × 2 x is 7 x and that of 3 x × 4 x is 8 x in Lilium and conclude that the aneuploid embryo survival of 3 x × 2 x /4 x in Lilium is the result of the euploid endosperm. Lily is usually propagated by scaling or tissue culture; therefore, aneuploids obtained from triploid × diploid/tetraploid lilies would be a good source for cultivar breeding.
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Claims 8
Claim · model-written summary
Fruits fully developed in all triploid by diploid or tetraploid lily crosses.
- Treatment
- triploid × diploid/tetraploid (3 x × 2 x /4 x ) crossese0
- Outcome
- fruits of all triploid × diploid/tetraploid (3 x × 2 x /4 x ) crosses fully developede0
LiliumNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that the fruits of all triploid × diploid/tetraploid (3 x × 2 x /4 x ) crosses fully developed, and seedlings were obtained from the 3 x × 2 x /4 x crosses, indicating that male-sterile autotriploid lilies can be used as female parents.”
t0“Euploid Endosperm of Triploid × Diploid/tetraploid Crosses Results in Aneuploid Embryo Survival in Lilium”
Claim · model-written summary
Triploid by diploid or tetraploid lily crosses yielded seedlings.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that the fruits of all triploid × diploid/tetraploid (3 x × 2 x /4 x ) crosses fully developed, and seedlings were obtained from the 3 x × 2 x /4 x crosses, indicating that male-sterile autotriploid lilies can be used as female parents.”
t0“Euploid Endosperm of Triploid × Diploid/tetraploid Crosses Results in Aneuploid Embryo Survival in Lilium”
Claim · model-written summary
The progeny of these crosses were predominantly aneuploid.
- Outcome
- progenies of the 3 x × 2 x /4 x are predominantly aneuploide0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chromosome preparation showed that the progenies of the 3 x × 2 x /4 x are predominantly aneuploid.”
t0“Euploid Endosperm of Triploid × Diploid/tetraploid Crosses Results in Aneuploid Embryo Survival in Lilium”
Claim · model-written summary
The inferred endosperm ploidy in 3x by 2x Lilium crosses was 7x.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Based on megasporogenesis, we deduce that the endosperm of 3 x × 2 x is 7 x and that of 3 x × 4 x is 8 x in Lilium and conclude that the aneuploid embryo survival of 3 x × 2 x /4 x in Lilium is the result of the euploid endosperm.”
Claim · model-written summary
The inferred endosperm ploidy in 3x by 4x Lilium crosses was 8x.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Based on megasporogenesis, we deduce that the endosperm of 3 x × 2 x is 7 x and that of 3 x × 4 x is 8 x in Lilium and conclude that the aneuploid embryo survival of 3 x × 2 x /4 x in Lilium is the result of the euploid endosperm.”
Claim · model-written summary
The authors attribute aneuploid embryo survival to euploid endosperm.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Based on megasporogenesis, we deduce that the endosperm of 3 x × 2 x is 7 x and that of 3 x × 4 x is 8 x in Lilium and conclude that the aneuploid embryo survival of 3 x × 2 x /4 x in Lilium is the result of the euploid endosperm.”
Claim · model-written summary
The authors suggest male-sterile autotriploid lilies as female parents.
- Outcome
- male-sterile autotriploid lilies can be used as female parentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that the fruits of all triploid × diploid/tetraploid (3 x × 2 x /4 x ) crosses fully developed, and seedlings were obtained from the 3 x × 2 x /4 x crosses, indicating that male-sterile autotriploid lilies can be used as female parents.”
Claim · model-written summary
The authors propose aneuploids from these crosses as cultivar-breeding material.
- Outcome
- aneuploids obtained from triploid × diploid/tetraploid lilies would be a good source for cultivar breedinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lily is usually propagated by scaling or tissue culture; therefore, aneuploids obtained from triploid × diploid/tetraploid lilies would be a good source for cultivar breeding.”