| 000 | 02415nab a22004577a 4500 | ||
|---|---|---|---|
| 001 | G66649 | ||
| 003 | MX-TxCIM | ||
| 005 | 20240919021139.0 | ||
| 008 | 121211b |||p||p||||||| |z||| | | ||
| 040 | _aMX-TxCIM | ||
| 090 | _aCIS-2644 | ||
| 100 | 1 | _aGrimanelli, D. | |
| 245 | 0 | 0 | _aNon-Mendelian transmission of apomixis in maize-Tripsacum hybrids caused by a transmission ratio distortion |
| 260 | _c1998 | ||
| 340 | _aPrinted | ||
| 500 | _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0018-067X | ||
| 520 | _aApomixis is a mode of asexual reproduction through seeds. The apomictic process bypasses both meiosis and egg cell fertilization: producing offspring that are exact genetic replicas of the mother plant. In the Tripsacum agamic complex, all polyploids reproduce through the diplosporous type of apomixis, and diploids are sexual. In this paper, molecular markers linked with diplospory were used to analyse various generations of maize-Tripsacum hybrids and backcross derivatives and to derive a model for the inheritance of diplosporous reproduction. The results suggest that the gene or genes controlling apomixis in Tripsacum are linked with a segregation distorter-type system promoting the elimination of the apomixis alleles when transmitted through haploid gametes. Hence, this model offers an explanation of the relationship between apomixis and polyploidy. The evolutionary importance of this mechanism, which protects the diploid level from being invaded by apomixis, is discussed. | ||
| 546 | _aEnglish | ||
| 591 | _aR97-98ANALY|9808|anterior|EE|ABC|1998kelly|FINAL9798|3 | ||
| 592 | _aFR-INA-PG 1997 GRIMANELLI D rf | ||
| 595 | _aCSC | ||
| 650 | 1 | 0 | _aApomixis |
| 650 | 1 | 0 | _aGenetic inheritance |
| 650 | 1 | 0 |
_91386 _aHeritability _gAGROVOC |
| 650 | 1 | 7 |
_aMaize _gAGROVOC _2 _91173 |
| 650 | 1 | 0 | _aReproductive performance |
| 650 | 1 | 0 |
_aResearch projects _91237 |
| 650 | 1 | 0 | _aTripsacum |
| 653 | 0 | _aORSTOM CIMMYT | |
| 650 | 1 | 0 |
_91314 _aZea mays _gAGROVOC |
| 650 | 1 | 7 |
_aPlant breeding _gAGROVOC _2 _91203 |
| 700 | 1 |
_aEspinosa, E., _ecoaut. |
|
| 700 | 1 |
_aGonzalez de Leon, D., _ecoaut. |
|
| 700 | 1 |
_aLeblanc, O., _ecoaut. |
|
| 700 | 1 |
_aPerotti, E., _ecoaut. |
|
| 700 | 1 |
_aSavidan, Y., _ecoaut. |
|
| 740 | _a66649 | ||
| 740 | _a92767 | ||
| 773 | 0 |
_tHeredity _n649234 _gv. 80, no. 1, p. 40-47 |
|
| 942 | _cJA | ||
| 999 |
_c19052 _d19052 |
||