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| STOMATAL SIZE IN FOSSIL PLANTS - EVIDENCE FOR POLYPLOIDY IN MAJORITY OF ANGIOSPERMS |
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| Author(s): MASTERSON J |
| Source: SCIENCE Volume: 264 Issue: 5157 Pages: 421-424 Published: APR 15 1994 |
| Times Cited: 385 References: 67 |
| Abstract: Three published estimates of the frequency of polyploidy in angiosperms (30 to 35 percent, 47 percent, and 70 to 80 percent) were tested by estimating the genome size of extinct woody angiosperms with the use of fossil guard cell size as a proxy for cellular DNA content. The inferred chromosome numbers of these extinct species suggest that seven to nine is the primitive haploid chromosome number of angiosperms and that most angiosperms (approximately 70 percent) have polyploidy in their history. |
| Document Type: Article |
| Language: English |
| Reprint Address: MASTERSON, J (reprint author), UNIV CHICAGO, COMM EVOLUT BIOL, 5734 S ELLIS AVE, CHICAGO, IL 60637 USA |
| Publisher: AMER ASSOC ADVANCEMENT SCIENCE, 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 |
| Subject Category: Multidisciplinary Sciences |
| IDS Number: NG194 |
| ISSN: 0036-8075 |
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| | | | | | | | | Record from Web of Science® | | | | | | | | | |